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Jennifer Lopez

"American Idol's" latest installment came to a conclusion just last week, but that doesn't mean J.Lo is ready to step out of the spotlight. Over the weekend, she made a special appearance in Sin City to celebrate the launch of her new single, "Goin' In." For the occasion, the diva extraordinaire donned a Zuhair Murad mini dress, which featured long sleeves and gold-sequined leaves, along with sparkly Louboutin heels. (5/26/2012)

2 Hot 2 Handle

This week's best-dressed celebs include Kristen Stewart, Jennifer Lopez, and Jessica Alba. -- By Matt Whitfield, Yahoo! Staff