Get your bucket of popcorn ready the Nickelodeon Kids' Choice Awards are going down in LA tonight. We've already taken a look back at the star-studded shows of the past, and we're keeping our fingers crossed for some of the A-list nominees to pop up on stage. Johnny Depp is up for favorite movie actor, and just yesterday he was spotted supporting his Pirates of the Caribbean: On Stranger Tides costar Penelope Cruz at her Walk of Fame ceremony. Twilight's Kristen Stewart's been busy filming Breaking Dawn up North, but perhaps she'll join Robert Pattinson for the trip as he takes care of his Water For Elephants twitter. Jay-Z's up for favorite male singer and Harry Potter and the Deathly Hallows: Part 1's Emma Watson is going head-to-head with Kristen in the favorite movie actress category. Justin Bieber's on tour so that might make it difficult for him to stop by, however, Cameron Diaz was recently hanging with Drew Barrymore in Las Vegas so there's a chance she could. So, tell us — which Kids' Choice nominee are you hoping shows up?