Eighty of Hollywood's biggest stars banded together to sing "We Are The World 25 for Haiti," which premiered tonight on the Winter Olympics. But among all the megastars, who was the one to sing the very first note? Yup! None other than J-14 favorite Justin Bieber!
Others who participated include Miley Cyrus, the Jonas Brothers, P!nk, Fergie, Nicole Scherzinger, Jennifer Hudson, Jason Mraz, Keri Hilson, Adam Levine, Jordin Sparks, Usher, Nicole Richie, Robin Thicke, Josh Groban, Iyaz, Orianthi, Drake, Wil.I.Am, Katharine McPhee, Joel Madden, Benji Madden, Julianne Hough, and tons more!