Ke$ha Talks Touring With Rihanna: 'We Braid Each Other's Hair ... Naked'

'I'm kind of just, like, her hype girl,' opening act tells MTV News of Rihanna.

We're rather mystified by reports that Rihanna's Last Girl on Earth Tour has been struggling to sell tickets. After all, from what [artist id="3213641"]Ke$ha[/artist] tells us, it sounds like the can't-miss show of the summer.

"We have slumber parties and pillow fights and we braid each other's hair a lot," Ke$ha laughed. "We talk about boys, naked."

We'd pay $91.75 to see that. And while we suspect that Ke$ha — who, along with Travie McCoy, has been serving as the opening act on the Last Girl jaunt — was only kidding about those backstage shenanigans, she has been having a blast on the tour. She said that sharing the stage with Rihanna has been a highlight of her still-young career.

"Touring with Rihanna is incredible, you should come see it. It's really fun. I've been out with her for about two weeks now, and I just learn so much from her as a performer," she said. "She has one of the best voices of anyone I've ever seen live, and I kind of just take it as my opportunity to hype up thousands of people."

And though her duties as opener — and hair braider — are rather taxing, Ke$ha is also using days off from the tour to play headlining shows of her own. Because she's still got plenty of energy left in the tank, even after she's spent the whole night hyping the crowd ... and having pillow fights.

"It's epic. She's amazing live and her voice is just so good," Ke$ha smiled. "I'm kind of just, like, her hype girl. I take the stage and hype it up for 40 minutes."