I'm pretty sure I fall outside the Cupid Players' target demographic. Judging by this show's content, the troupe's ideal audience member is young enough to be weirded out by the thought of his parents having sex but old enough to worry that he's starting to act like his dad. He dreads romantic rejection almost as much as he fears commitment. And he's not above a hand of strip solitaire. A longtime married man with kids, I don't merely fail to fit the profile--I may be its antithesis. But I had a great time with Cupid Has a Heart On all the same. Directed by Brian Posen, who also plays piano and sings barbershop bass, this late-night show takes a standard element of improv revues--the satirical song--and makes it a raison d'etre. A charmingly goofy cast of ten performs no less than 15 original ditties, mostly keyed to the sensibility of the young, single, heterosexual urban male on the make. That this doesn't result in an unwatchable testosterone fest is testament to a wit that's always firmly based in character and in situations that remain truthful however far they get pushed. Open run: Sat 10:30 PM. ImprovOlympic, 3541 N. Clark, 773-880-0199. $14.