Around 11 p.m. on Friday and Saturday nights a duel breaks out. This isn't the Step Up dancing duel you'd expect, even though it does happen close to Rec Room's dance floor, if you could call it that. No, this battle involves throwing down some bills and setting the musical tone of an evening. Lines are drawn and people get angry. We've sat at the bar on multiple occasions and heard people begging Boston to change the song, even throwing out the line, "Do you know who my father is?" We're not sure how that's relevant if Lit is playing, but whoever owns the jukebox can be a hero or a life ruiner depending on your stance. Pop songs seem to be OK every once in a while, old-school hip-hop can be a game changer, and anything from the '90s gets people moving. Metal and soft rock get the most groans. We think you should play what makes you happy, but be prepared to get stares if you "MMMbop" while sipping your mmmhop.