Mario Lopez

Actress/Musician Demi Lovato and TV Personality Kim Kardashian arrive at the 2011 VH1 Do Something Awards at the Hollywood Palladium on August 14, 2011 in Hollywood, California. View entire gallery here

Hollywood’s most generous stars dazzled on the blue carpet at Sunday night’s 2011 Do Something! Awards held at the Hollywood Palladium in Los Angeles. Allie is Wired was there to catch it all! The Do Something! Awards honor young people’s commitment to social change and also award celebrities who give back.

While the 2011 Do Something! Awards don’t air on VH1 until August 18, Demi Lovato, Justin Bieber, Kim Kardashian, Sophia Bush, Mario Lopez, Kristen Bell, host Jane Lynch and many more stars walked the red carpet for tonight’s ceremony. The event honors young people’s commitment to social change. Lovato will perform during the telecast, and presenters including Olivia Munn and Nick Cannon will be part of the festivities, too.

Brittany Snow arrives at the Do Something Awards on Sunday, Aug. 14, 2011, in Los Angeles. The awards recognize young people who have a positive impact on their communities. View more pictures from the 2011 Do Something Awards here!

We’ve already told you about the all-star lineup of presenters and performers who will be at the 2011 Do Something! Awards this year, a list that includes Adam Lambert, Victoria Justice, and Nick Cannon, to name a few. But just today we learned of a few more A-listers who will be on hand at the show and if we can be quite honest, this list? It’s insane. Check out the full roster of attendees and presenters after the jump! The Do Something! Awards air on Thursday, August 18 at 9 p.m. ET/PT.