Put away your suitcase, because you no longer have to travel to out-of-state festivals to hear the bands who will be famous tomorrow. All you have to do is go to Book & Stage, the Cosmopolitan’s casino bar/sports book/music venue, where emerging artists perform for free twice a night during multiday residencies. Upcoming acts include Walk the Moon, the Constellations, Timothy Bloom and the Funk Ark. Never heard of ’em? That just proves B&S’ foresight. The music is booked by C3 Presents—the same folks who pick the bands for Lollapalooza and Austin City Limits—so see them now while the price is right.