But by the end of the night, two other nominees -- Kanye West and Taylor Swift -- may upstage them all. He's due to perform but people will really be watching to see if he has another outlandish moment.
Last year, West got on stage after Swift won her award for best female video and said it should have gone to Beyonce -- causing a huge backlash.
This year, Swift has written a song about the incident and will perform it at the show.
