It's that time of the season again- the one when all your favorite Idol-ers and celebs team up to raise awareness and funds to benefit poverty stricken children around the world. So who'll be joining this year's event? Basically every celeb under the sun including Bono, Brad Pitt, Robin Williams, Billy Crystal, Reese Witherspoon, Miley Cyrus, Mariah Carey, Fergie, Chris Daughtry and Snoop Dogg. We could go on, but this preview sums it up best (with some added bloopers, of course!)