On Monday night, 2012 -- a year of boy bands, teen Olympians, "Call Me Maybe" parodies and young people changing the world -- came to an end, and the world celebrated the fresh start of a new year. Many of our favorite stars took to Twitter on December 31 to share their NYE plans and New Year's wishes for friends and fans.

Demi Lovato expressed gratitude for how far she's come in the past year, while gymnast McKayla Maroney had a special demand for the year ahead. Click through the slideshow below for 20 funny, inspiring and sweet messages from young celebs on Twitter.

Tell us: How did you ring in the new year? What are your resolutions for 2013? Share your thoughts in the comments below or tweet @HuffPostTeen!

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