Grace Potter Reveals Underwear Secrets at Lollapalooza 2011

Grace Potter wears two pairs of underwear.

"You got to have your s--- straight underneath," the gorgeous singer, known just as much for her soulful, wall-of-sound vocals as she is for rocking out in her trademark gravity-defying, sparkly mini-dresses, tells Spinner before her Friday set at Lollapalooza 2011. "There are so many people now trying to get nasty panty shots, or like the one where I get down on my knees onstage and everyone is like, "Oh my god! I saw her p----. But of course," she assures, "you never see my p----."

In fact, Potter says she doesn't even worry about flashing her fans at this point. "There was a casualty -- at the Dave Matthews show we did in Atlantic City where you could see my underwear, but that's the worst, and it's just like a bathing suit."

Since releasing her third eponymous album with the Nocturnals, Potter's life has mirrored the refrain of the band's hit single 'Paris (Ooh La La).' Tongues have been wagging for the roots-rocker since Potter and the Nocturnals (GPN) took the stage at the televised 'VH1 Divas Salute the Troops' concert last December. Potter, who grew up in Vermont and got her start in the hippie-friendly jam band circuit six years ago, overshadowed mainstream acts like Katy Perry and Nicki Minaj with her personal, enviable rock 'n' roll style: She sings like Janis Joplin but dresses like Tina Turner.

Potter and the Nocturnals, in the past year, have gone from being what Potter herself calls a "throwback retro classic-rock band" to a crossover act thanks to their modern influences (She just re-bought the Black Keys' 'Brothers' album after it went missing on her computer, she tells us backstage.) The proof is not only in GPN's faster-moving new album, but also their debut appearance at Lollapalooza this year, despite having already graced other US festivals like Bonnaroo three times and Coachella in past years.

"I think that Lollapalooza is a crossover audience," Potter says. "Lollapalooza has been around for years and years establishing itself on that alternative attitude and I think our new record may finally get caught a little bit more in that."

Potter didn't hold back during GPN's Lollapalooza set, as was evident by the high kicks and back-bending notes. She jumped between the mike, her vintage Hammond B3 piano and a flying V guitar in stilettos, on songs like the soulful 'Apologies,' 'Hot Summer Night' and '2:22.'

"You know that saying, 'You take the high road, and I'll take the low road'? I always seem to wind up on that low road," Potter relented before launching into 'Low Road,' where she sings well beyond her 28 years, "I held on so dearly to the wrong things in my life." But GPN isn't a one-woman show, as was most evident during 'Stop the Bus,' an anthemic shout-out to the road that starts slow before it turns into a headbanging assault on the audience thanks to the three battling guitars onstage.

"I can't hear you!" she screamed into the mike during 'Paris.' "Oooh la la Lollapalooza," she urged along, comfortable onstage in her sparkly mini-dress.

"If I could perform naked, I would," Potter admits backstage. "It's just, to me, about being really comfortable on stage. When I do what I do, I have to be comfortable. I have to rock out. I want my little moment to feel like I'm free of it all and wearing a tiny skirt where there is nothing but air going up there is like the most freeing feeling in the world. I love it."

Grace Potter Performs 'Paris (Ooh La La) at Lollapalooza

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