We may be accustomed to seeing celebrities in the spotlight, but all of that changes when stars become part of their non-famous friends' wedding parties.

These celebs stepped out of the spotlight and stepped up to the ever-important roles of bridesmaid, Maid of Honor and Best Man at their friends and families' weddings.

Click through the slideshow to see which famous faces played a part at their loved ones' nuptials and let us know: Which celeb would you want to have in your wedding party?

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  • Selena Gomez

    Starlet Selena Gomez made her way down the aisle in December 2011, but not as a bride. Gomez <a href="http://www.huffingtonpost.com/2011/12/09/justin-bieber-selena-gomez-beach-wedding-mexico-engaged-photos_n_1138692.html" target="_hplink">performed bridesmaid duties</a> at her friend <a href="http://wonderwall.msn.com/music/gossip-justin-and-selena-get-handsy-at-wedding-1657065.story" target="_hplink">Shannon Larossi's wedding</a> in Cabo San Lucas, Mexico, and brought her singing sensation boyfriend, Justin Bieber, with her too.

  • Rachel Bilson

    In <a href="http://stylenews.peoplestylewatch.com/2008/09/22/rachel-bilson-maid-of-honor-and-bridesmaid-dress-designer/" target="_hplink">September 2008</a>, actress Rachel Bilson was the maid of honor at her best friend's wedding in Santa Barbara, Calif. In addition to supporting the bride, the noted fashion icon <a href="http://stylenews.peoplestylewatch.com/2008/09/22/rachel-bilson-maid-of-honor-and-bridesmaid-dress-designer/" target="_hplink">teamed up with</a> designer Brian Reyes to create four one-of-a-kind silk georgette and chiffon gowns for the bridesmaids.

  • Britney Spears

    In January 2011, Britney Spears acted as <a href="http://www.tmz.com/2011/01/30/britney-spears-maid-of-honor-wedding-miami-photo/#.TufV93NW6fY" target="_hplink">maid of honor</a> for her assistant and friend Brett Miller in his Miami wedding. Spears wore a <a href="http://www.dailymail.co.uk/tvshowbiz/article-1352061/Britney-Spears-walks-aisle-time--time-maid-honour-friends-wedding.html" target="_hplink">floor-length blue gown</a> for the ceremony.

  • Jessica Simpson

    Jessica Simpson may have been very pregnant, but that didn't stop her from donning heels and a pink bridesmaid dress at the wedding of friend and former assistant Lauren Zelman, who<a href="http://www.usmagazine.com/celebrity-news/news/pregnant-jessica-simpson-wears-pink-bridesmaids-dress-at-wedding-2012263" target="_hplink"> tied the knot in Palm Springs, Calif.</a> in March.

  • Nicole Scherzinger

    In February 2009, former Pussycat Dolls lead singer and X-Factor judge Nicole Scherzinger stepped out of the spotlight to let her sister, Keala Leemon, shine on her wedding day. The maid-of-honor even provided her <a href="http://www.people.com/people/article/0,,20262743,00.html" target="_hplink">musical talents for the night</a>, performing during her sister's first dance.

  • Kate Bosworth

    In March 2008, actress Kate Bosworth <a href="http://www.popsugar.com/Kate-Bosworth-Plays-Beautiful-Bridesmaid-1103946" target="_hplink">played the role</a> of bridesmaid at her friend's wedding in Sydney. Bosworth wore a simple black gown.

  • Jessica Alba And Cash Warren

    Married celeb couple Jessica Alba and Cash Warren both played a part in their pals' Amir Khastoo and Jacqui Lang's <a href="http://www.justjared.com/2010/09/18/jessica-alba-cash-warren-bridesmaid-best-man-in-beverly-hills/" target="_hplink">nuptials in September 2010</a>. Alba was a bridesmaid and Cash acted as Best Man for the groom.