Need a little moral support? B.o.B.'s got your back. On his latest mixtape single, the A-Town hitmaker tells us, “If you ever need somebody to lean on, Lean on Me.” Though the sentiment at its core is warm and fuzzy, this cut is by no means soft. Tommy Brown turns in a gritty instrumental fueled by trap percussion, and Bobby Ray busts out some of his most powerful flows to match. Even Victoria Monét's hook is quite a bit tougher than you might expect. Isaac Klotz's hazy visuals round out the package. Like what you're hearing? More awaits on No Genre 2, available now for streaming and download in the DJBooth.