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OTRC: Katy Perry reveals diet and talks 2011 tour plans

Katy Perry's 'California Dreams' 2011 tour logo. / Katy Perry speaks to OnTheRedCarpet.com at the 2010 American Music Awards in Los Angeles in November 2010. (katyperry.com)

Katy Perry is known for strutting her stuff across the stage in form-fitting outfits that can leave little to the imagination. So it's no wonder that her new 95-date California Dreams Tour includes a whopping 15 outfit changes and causes the "California Gurls" singer to start intense training for the tour.

"After this interview I'm going to have a nice healthy breakfast," The singer tells . Rolling Stone. "I'm on a meal plan, which absolutely sucks -- but on Sundays I get to have a cheat day where I go buck wild and eat In-N-Out Burger. Then I'll work out, go to a vocal lesson, run through the entire set at rehearsals, go to dance rehearsal until 10 p.m. and then go home and sort through e-mails concerning the production. I feel like I'm training for the Olympics!"

The California Dreams Tour marks Perry first world-wide arena headlining tour, according to the magazine. It kicks off on February 20 in Portugal and lasts until her November 2 concert in Dublin and also includes stops in Orlando, Seattle, and Los Angeles.

"Touring is no longer an ordinary thing where you play an instrument in jeans and a T-shirt. It has some pizazz these days," she says. "I'm definitely bringing the pizazz with a lot of bells and whistles. The show has a Broadway feel to it."

That extra pizzazz will apparently also include what Perry calls "Smell-O-Vision." The singer says her tour is "going to smell like you're in cotton candy heaven. It's a fun little nuance."

As for her recently announced appearance on "How I Met Your Mother," where, based on recently released images, Perry plays a character that seems to get close to Neil Patrick Harris' character Barney. "I just did it basically because I'm obsessed with Neil Patrick Harris," Perry told Rolling Stone. "He's really sweet, and the cast on the show was really nice to me and forgiving of my bad acting skills."

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