Jennifer Lopez & Mariah Carey Are Glam Show Girls for Paper Magazine's Vegas Issue
The Backstreet Boys and Ricky Martin are also on different covers.
While they go all out in their shows, the rest of the pop stars' time in Vegas seems pretty lowkey and centered on spending time with their families.
"I do in my show, but the show is so demanding for me that I kind of have to stay on regimen when I'm here," Lopez tells Paper. "The name of the show is 'All I Have,' so I can't be like, 'Tonight you're getting half,' you know. You can't do that."
"I'm here to dance and the wildest thing I've done is, oooh, I danced 'til 4. You know, that was it," she says.
Carey's #1 to Infinity show at the Colosseum at Caesars Palace will be followed by a special holiday run, called the All I Want for Christmas Is You show, in December.
Besides chatting about Vegas, Paper asked the singer about her "diva moments," which she clarified are not just moments: "Actually, I have had diva moments, and then people can't handle it," Carey tells the mag. "I guess it's a little intense, because I come from a true diva: My mother is an opera singer. And that's a real diva, you know -- Juilliard diva. And so other people that are like, 'I'm a diva,' it's like, 'Honey, you don't know what a diva is, you didn't grow up with my mom.'"
Backstreet Boy Kevin Richardson also got real in the boy band's interview with the magazine, speaking of the reality of performing their Larger Than Life set.
"When you're onstage and you look out at the faces in the crowd and you hear the cheers and the energy, it feels like yesterday and as if you're in a time capsule," he says. "Then other times, when you're offstage and getting undressed, you get a little stiff. That's when the reality sets in that you're not 24 anymore."
Check out the stars' show-ready covers below.