Doing A Miley Cyrus? Katy Perry Flashes Cleavage In See-Through Dress At Prism Album Launch (PHOTOS)

The launch was live-streamed to fans

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Katy Perry celebrated the release of her eagerly- anticipated new album, Prism, last night as she took to the stage at the iHeartRadio Theater in Burbank, California with a performance and interview with Mario Lopez, as the whole thing was live-streamed across the globe.

Katy put on a show for her adoring fans, with the singer belting out her smash hit Roar amongst other hits in a rather eye-catching outfit that consisted of a see-through dress with a silver belt, fishnet stockings and white heels.

This was then teamed with some purple lippy - don't do anything by halves, do you Katy?

Katy shows off her killer bod at yesterday's Prism launch (Photo: Splash News)

Talking previously to USA Today, she revealed that Prism is "less over-the-top and more me."

"There were good songs that I left off, like Hell Hath No Fury Like A Woman Reborn. It's gritty and angry and has a dark side, and it didn't fit how I feel now," she said of the whole songwriting process. "Sometimes you have to write those songs to get them out of the way."

The launch was broadcast to fans (Photo: Splash News)

Meanwhile, the California Girl singer recently opened up about everything from Russell Brand to Prism in a new interview with W magazine.

Speaking about her religious life, she also told the publication: "I try and keep my connection with the G-O-D or with a power that's bigger than me. It's important - otherwise, you don't have any kind of accountability," she said.

"If you think, Hey, at the end of it all I am just going to be dust, or I have no soul or whatever, why not just be a menace to society? For me, accountability works."

The star also took the opportunity to talk about her failed marriage to Russell Brand and how it influenced her latest record.

"Of course. I really loved it," she said of the couple's 14 month union. "It was a new, fun, exciting journey. But I like how I am now, and I think all things happen for a reason."

Katy Perry stuns at Prism album launch

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 Katy Perry stuns at Prism launch, October 22 (Photo: Splash News)