nicki minaj brought all the drama and it was caught on cam made. she flipped a switch after winning best rap and is seen rolling her eyes. >> i think she almost forgot to thank someone. i don't think that was a big issue. but host jennifer lopez shined. multiple outfit changes stealing the spotlight. and celine dion with an emotioned a tribute to paris. and are you a belieber? justin bieber dancing in a downpour. the evening's biggest surprise wasn't enan award, though. it was these boots. check it out, meghan trainor and charlie lock lips after their song.