Jennifer Lopez rocks mini dresses and stilettos during American Idol, but on Friday afternoon she grabbed a low-key lunch in LA wearing sweats. Jennifer has been bouncing back and forth between live Idol appearances and promoting her forthcoming album, Love?. J Lo made a sexy, midriff bearing appearance at a Best Buy on behalf of BlackBerry's new PlayBook tablet last week and on May 3 her CD goes on sale nationwide at the retailer. The first single, "On the Floor," is holding strong in the top ten and her second release, "I'm Into You," featuring Lil Wayne, will sizzle with a steamy new video that drops next week. Fans can take a listen to a sneak peek of J Lo's entire Love? album that leaked online over the weekend.