Last night, Jennifer Lopez sat down for an interview with Jay Leno and he asked her about her first dance gig. “I got a job working as a back-up dancer for New Kids on the Block,” she said. “It was dancing for them on the American Music Awards and it was a big deal. That was a long time ago.” Jay then informed her that the exact year was 1991 and that he had the video footage ready to roll. Above, check out Jennifer hanging tough with the guys.