Posted by | Ray Cornelius

The Voice’s Christina Aguilera announced the nominations earlier today for this year’s American Music Awards.

So far the reigning Queen of Hip Hop Nicki Minaj and über pop star Rihanna lead the pack with four nominations apiece with both competing for Favorite Female Pop/Rock.

Drake and Usher have three nominations while Chris Brown, J. Cole and Pitbull are up for two awards. Drake and Rihanna will also go toe to toe for one of the evening’s highest awards, Artist of the Year.

Nominations are based on broadcast airplay and online popularity. Fans can vote online for their favorite artist in all 20 categories.

Look for the AMA’s to air live on November 18 from the Nokia Theatre on ABC.

Check here for a complete list of nominees.