“Bow Down/I Been On” Queen B rips pretenders with the B word on an edgy boastfest that shows Jay isn’t the only one in the house with street fierceness. 
KENDRICK LAMAR FEATURING JAY-Z
“Bitch, Don’t Kill My Vibe” remix Jigga sounds more engaged than he did with JT on “Suit & Tie,” but the younger rapper doesn’t need him. 
WILL.I.AM FEATURING JUSTIN BIEBER
This club pounder could be just what Biebs needs to pump himself out of his blues. 
THIRTY SECONDS TO MARS
“Up in the Air” On a stadium-ready anthem from their upcoming album, Jared Leto’s band takes off into the U2 stratosphere.