If I were mayor, I’d require all bars to do a “Dreaming of You” sing-along at last call and a MAC lipstick goodbye kiss to all those boozy strangers. But the Guadalupe’s Selena biopic sing-along is the next best option. Starring Jennifer Lopez as the tejano icon, the role rocketed Jenny from the block and toward a superstardom that Selena herself didn’t get the opportunity to enjoy. The movie is good — not Amor Prohibido material, but still pretty good. But its soundtrack, filled with live recordings from Selena herself, is what made us want to sing-along in the first place.