Nicki Minaj returned to her mixtape roots and stole Drake's thunder with the surprise release of "Boss Ass Bitch." 

Date: December 30.

"For nearly four minutes Minaj throws shade at her competition, males included. "I employ these niggas/They be grown men/But I little-boy these niggas," she raps before putting her nether regions on a pedestal. Nicki also states she's in 'album mode,' which means we can expect more music from her in 2014. She ends the song by shouting out Lil Wayne and Birdman. No Drake? No problem."—Edwin Ortiz