Hotter in Red: Jennifer Lawrence or Jennifer Lopez?

"I'm not a size 0 or 2. I'm not 6-feet-tall like a lot of the models that come around, and I’m like, 'Wow, I’m really short compared to models!,'" the 42-year-old "American Idol" judge tells Vogue. "I’m just a regular woman. I wear a size 6. You know, when I eat a little too much over the holidays, maybe a size 8. When I’m in shape, maybe a size 4."

Of where her relationship with estranged husband Marc Anthony went wrong, she says, "It became about something else. Without going into detail…it’s just really, really sad. And look, we are still going through it, and it’s emotional sometimes and difficult. We’re still friends -- and we’re parents but it’s going to take time. It’s tough. But for the most part, I feel very proud of the way we’re handling it. I really do. We are doing the best we can for the kids."

As for her 24-year-old dancer boyfriend Casper Smart, she said: "He’s adorable. But you already see that. He’s a good egg. I don’t want to talk about it too much. It's my private thing." So ... who wore red better? J-Law or J-Lo?