Coverage of the 27th annual bash. Lady Gaga leads the pack with 13 nominations, followed by Eminen, who has eight. Scheduled performers include Justin Bieber; Kanye West; Florence and the Machine; Drake; and B.o.B. Chelsea Handler hosts. Presenters: Ashley Greene; Ke$ha; Nicki Minaj; Emma Stone; Penn Badgley; Trey Songz; Selena Gomez; and Ne-Yo.