After a fan threw a Barbie doll onstage at a Demi Lovato concert in Brazil this weekend, the body-positive star made a big statement.

“I spent my whole life trying to be this and trying to look like this," Demi told her fans. “And guess what? I’m not this. And it means the world to me that you guys still love me no matter what.”

Having struggled publicly with eating disorders, self-harm and mental health issues, the now healthy and happy singer takes every opportunity to remind her fans that, like her, they'll make it through.

“I’ve been through so much in my 20 years of life,” Demi went on to say. "I know how you guys feel and I want to show you guys that you can get through it because I’m living proof right here.”

With these words, Demi threw the Barbie back into the crowd at Rio de Janeiro's Z Festival and went into an emotional performance of her hit single "Skyscraper." Watch the video above of her incredible performance.

Inspiring messages like this are a big part of what her many fans love about Demi. As one fan wrote in a birthday letter to Demi, "I stay strong for your sake... You are a true inspiration for us Lovatics."

Are you inspired by Demi's message? Tell us in the comments below or tweet @HuffPostTeen.

Also on HuffPost:

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  • From Becca Fritz

  • HAPPY BIRTHDAY DEAR DEMI!!!!!!!

    <a href="http://www.huffingtonpost.com/social/jessikacuicapuz"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3760307.png" /></a><a href="http://www.huffingtonpost.com/social/jessikacuicapuz">jessikacuicapuz</a>:<br />I STAY STRONG FOR YOUR SAKE ..THANK UU SO MUCH MY LOVELY GIRL AND HAPPY BIRTHDAY SWEETIE ....WE LOVE YOU SOO MUCH ...YOU ARE A TRUE INSPIRATION FOR US "LOVATICS"

  • Happy 20th Birthday Demi. Love you so much

    <a href="http://www.huffingtonpost.com/social/tristin1433"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/google_profile_img/3760235.png" /></a><a href="http://www.huffingtonpost.com/social/tristin1433">tristin1433</a>:<br />LOVE YOU DEMI.

  • Demi's 20th Birthday

    <a href="http://www.huffingtonpost.com/social/dtflovato"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3760363.png" /></a><a href="http://www.huffingtonpost.com/social/dtflovato">dtflovato</a>:<br />Happy 20th Birthday Demi

  • Happy 20th Birthday Demi!

    I made this video for Demi and I worked really hard on it I hope she sees it! Happy Birthday Demi!!!

  • From Jasmine

  • From Danielle

  • demi's birthday xxx

    <a href="http://www.huffingtonpost.com/social/PowerOfLovatics"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3760401.png" /></a><a href="http://www.huffingtonpost.com/social/PowerOfLovatics">PowerOfLovatics</a>:<br />HAPPY BIRTHDAY DEMI !!! hope you have an awesome day on the big 20th xx LOVE YOU SO MUCH u mean the world to me

  • From Michelle Pham aka @crazymichelle24

  • Happy Birthday from A Lovatic

    <a href="http://www.huffingtonpost.com/social/DdLovaticD"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/100002290936292/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/DdLovaticD">DdLovaticD</a>:<br />Happy 20th. My baby is all grown up. Demi is my inspirationn. She is currently helping me through issues of my own. Follow my twitter @DdLovaticD for more.

  • From Torie

  • What Demi Lovato Means to Me

    <a href="http://www.huffingtonpost.com/social/musicaljenius"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3760426.png" /></a><a href="http://www.huffingtonpost.com/social/musicaljenius">musicaljenius</a>:<br />Demi Lovato has saved my life (and millions of others) in many ways and I couldn't do or say anything to thank her. I can only hope my support and dedication to her can be enough. Love you so much Demi and Happy birthday! (fellow Leo =]) Twitter: @musicaljenius YouTube: hendrixluvr

  • From Jasmine

  • From Cindy

  • <a href="https://twitter.com/GirlisaLovatic/status/236993019130310656" target="_hplink">@GirlsaLovatic</a>: Demi you are the one who showed me light in my darkness. You are the reason iknow it will be okay. #LetterstoDemi

  • Maya Lovatic

  • happy 20th birthday, demi!

    <a href="http://www.huffingtonpost.com/social/LiveLov3Lovat0"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3760605.png" /></a><a href="http://www.huffingtonpost.com/social/LiveLov3Lovat0">LiveLov3Lovat0</a>:<br />happy birthday demi, i love you. heres a special picture i mde for you

  • happy birthday demi

    <a href="http://www.huffingtonpost.com/social/LiveLov3Lovat0"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3760605.png" /></a><a href="http://www.huffingtonpost.com/social/LiveLov3Lovat0">LiveLov3Lovat0</a>:<br />

  • HAPPY BIRTHDAY DEMI!!!!

    <a href="http://www.huffingtonpost.com/social/Lauren_Lovatic"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/Lauren_Lovatic">Lauren Lovatic</a>:<br />Happy birthday beautiful lady. I love you! I kinda sorta missed a word... I was focused. Have a magnificent birthday!!! xoxo

  • Happy Birthday Demi!

    <a href="http://www.huffingtonpost.com/social/melissayang13"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3765187.png" /></a><a href="http://www.huffingtonpost.com/social/melissayang13">melissayang13</a>:<br />Happy Birthday Demi!!

  • Demi's birthdaaay!

    <a href="http://www.huffingtonpost.com/social/LovatoLoveLife"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3760676.png" /></a><a href="http://www.huffingtonpost.com/social/LovatoLoveLife">LovatoLoveLife</a>:<br />Happy Birthday Demi! I love you so flaming much, Lovatic since 2008! Stay Strong, you're gorgeous!

  • <a href="https://twitter.com/Efesque97/status/237629198498406400" target="_hplink">@efesque97</a>

  • <a href="https://twitter.com/MySkinnyLove821/status/237043334760243200" target="_hplink">@MySkinnyLove821</a>

  • <a href="https://twitter.com/MySkinnyLove821/status/237046298753265664" target="_hplink">@MySkinnyLove821</a>

  • Demi's 20th Birthday

    <a href="http://www.huffingtonpost.com/social/Demi_August20th"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3760680.png" /></a><a href="http://www.huffingtonpost.com/social/Demi_August20th">Demi August20th</a>:<br />#letterstodemi Demi has been my idol since 2007. I will love her forever. Happy Birthday Demi

  • Happy Birthday Beautiful

    <a href="http://www.huffingtonpost.com/social/Lenymar_Matos"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1593828011/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Lenymar_Matos">Lenymar Matos</a>:<br />Demi, you are such an inspiration. You are beautiful inside and out. I wish you an amazing birthday. Love, Leny ♥

  • Rise Like A Skyscraper!!

    <a href="http://www.huffingtonpost.com/social/LovaticDSmiler"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3760760.png" /></a><a href="http://www.huffingtonpost.com/social/LovaticDSmiler">LovaticDSmiler</a>:<br />Demi Happy Birthday !! I Love You !! ohmygosh can't believe my little girl 20 *Cries* Demz i wanna thank you for everything!! You're amazing !! Enjoy your birthday Xoxo ;D

  • Happy Birthday Demi Lovato!

    <a href="http://www.huffingtonpost.com/social/Yvonne_Chai"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1716796759/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Yvonne_Chai">Yvonne Chai</a>:<br />I love you Demi! Everytime you sing i get shivers and i wish u the best! #Lovatic

  • Happy Birthday Demi

    <a href="http://www.huffingtonpost.com/social/MyDemiSparkles"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3761568.png" /></a><a href="http://www.huffingtonpost.com/social/MyDemiSparkles">MyDemiSparkles</a>:<br />Happy Birthday Demi I Love You

  • Happy Birthday Beautiful :D

    <a href="http://www.huffingtonpost.com/social/unbrokenkathleen"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/winlive_profile_img/3760504.png" /></a><a href="http://www.huffingtonpost.com/social/unbrokenkathleen">unbrokenkathleen</a>:<br />HAPPY BIRTHDAY BEAUTIFUL!!! I hope you have an amazing year, you deserve all the happiness in the world. I know everyone says this but thankyou, I owe you my life, you are my hero and my inspiration. I will stay strong for you. I love you heaps. Love Kathleen from Australia :)

  • Love is Louder

    <a href="http://www.huffingtonpost.com/social/sopieq"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3761499.png" /></a><a href="http://www.huffingtonpost.com/social/sopieq">sopieq</a>:<br />thanks Demi!!!

  • Happy Birthday Demi

    <a href="http://www.huffingtonpost.com/social/KarinaaaBean"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3764701.png" /></a><a href="http://www.huffingtonpost.com/social/KarinaaaBean">KarinaaaBean</a>:<br />Happy Birthday Dems

  • <a href="https://twitter.com/goodvibes1D/status/237066683964080128" target="_hplink">@goodvibes1D</a>

  • <a href="https://twitter.com/MB_ImmortalLOVE/status/237205907346436097/photo/1" target="_hplink">@MB_ImmortalLove</a>

  • Happy 20th Birthday

    <a href="http://www.huffingtonpost.com/social/Tomas_Mota"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1532785900/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Tomas_Mota">Tomas Mota</a>:<br />Happy 20th Birthday! I've been following you ever since you stared in Camp Rock and I'd like to thank you for being there. You and your music have been there for me through my highs and lows and for that I'm thankful. Thank you for being a part of my life and brightening my life everyday. Stay Strong

  • I love you.

    <a href="http://www.huffingtonpost.com/social/katydellovato"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3764654.png" /></a><a href="http://www.huffingtonpost.com/social/katydellovato">katydellovato</a>:<br />Love you more than anything Demetria Devonne xxxxxxxxxxxxxxx

  • <a href="https://twitter.com/TheDelenaTeam_/status/237044851659657216" target="_hplink">@TheDelenaTeam_</a>

  • <a href="https://twitter.com/PrincessCTianna/status/236961970476175360" target="_hplink">@PrincessCTianna</a>: #LettersToDemi I was so inspired at the Aug 12th concert that I taught myself how to play some of your songs on piano.

  • <a href="https://twitter.com/DemiBeliever18/status/236952547674447874" target="_hplink">@DemiBeliever18</a>: #LettersToDemi I truly cant explain how much u mean 2 me u were gave a voice 4 a reason & u did the right thing wit it

  • <a href="https://twitter.com/StronglikeDeemi/status/237005980162990082" target="_hplink">@StronglikeDeemi</a>: #LettersToDemi Happy Birthday Demi!! I love you so so so so much!!!

  • <a href="https://twitter.com/musiclover034/status/236938089975656448" target="_hplink">@musiclover034</a>: #LettersToDemi Demi I love you you're my Kelly & so much more. You're beyond words! Happy 20th! #StayStrong

  • Happy Birthday Demi!

    <a href="http://www.huffingtonpost.com/social/italkdemi"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3760967.png" /></a><a href="http://www.huffingtonpost.com/social/italkdemi">italkdemi</a>:<br />Happy Demi. i hope you have the best day ever. you have no idea how much you've helped me the past year. i've always been a fan, but this past year you have honestly helped me so much. not one 'thank you' is enough. from the bottom of my heart, enjoy your 20th birthday. thanks for staying strong.♥

  • DemiToAustralia❤☺

  • Happy Birthday Demi!

    <a href="http://www.huffingtonpost.com/social/DemiDomination"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3760977.png" /></a><a href="http://www.huffingtonpost.com/social/DemiDomination">DemiDomination</a>:<br />Happy Birthday Demi!

  • My Drawing Of Demi

    <a href="http://www.huffingtonpost.com/social/DemiBluevato98"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/3761104.png" /></a><a href="http://www.huffingtonpost.com/social/DemiBluevato98">DemiBluevato98</a>:<br />Here's a picture I drew of Demi, I hope she likes it and has a happy 20th birthday :)