Jennifer Lopez pulled an Angelina Jolie tonight at the Grammy Awards, flaunting pretty much all of her right leg in a very revealing dress. "So, as you can see, I read the memo," Lopez joked as she walked onstage to present an award. She was referencing CBS' strict dress code guidelines—which, as she points out to E!, don't say anything about showing a little leg. "I thought I was being such a good girl!" she says. "A little shoulder, a little leg." Also flaunting the dress code a bit: Katy Perry and her breasts.