Lopez, of course, wore one of the most famous Grammy ensembles ever back in 2000 when she donned a green Versace dress that exposed pretty much everything except the unmentionables from her neck down to below her belly button. (She still has the dress, by the way, she told Harper's Bazaar recently.)
This year's Anthony Vaccarello gown was definitely more modest, but given the network's warning about not showing things like "under curves of the buttocks" or "bare sides or under curvature of the breasts," it was a bit daring simply in terms of the amount of skin shown, as it revealed J. Lo's right leg all the way up to the hip.
Add to that the fact that she posed boldly on the red carpet in a manner similar to Angelina Jolie's famous "Jolieing" stance at last year's Oscars.
"They didn't say anything about leg!" Lopez told E! News. "I thought I was being such a good girl! A little shoulder, a little leg."
While Lopez was striking her pose at the Grammys, Jolie was making her first red carpet appearance of the year at the American Society of Cinematographers Outstanding Achievement Awards. Wearing a long-sleeved gray-cashmere cocktail dress by Atelier Versace, according to OMG!, the 37-year-old was there to present a lifetime achievement award to Dean Semler. Semler was director of photography on "In the Land of Blood and Honey," which Jolie directed.
So who did the lone leg better, J.Lo at the Grammys or Angelina at the Oscars? Let us know in the poll above.
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