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Katy Perry to Perform at Billboard Music Awards

Katy Perry Grammy Performance - P 2012
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The singer joins Justin Bieber, Carrie Underwood, LMFAO, Cee-Lo Green, Kelly Clarkson, Usher, The Wanted, Linkin Park and Nelly Furtado on the stage on the May 20 show airing live from Las Vegas.

Katy Perry is the latest addition to a growing list of superstar performers taking the stage at the 2012 Billboard Music Awards in Las Vegas, which airs live May 20 on ABC at 8 p.m. ET from the MGM Grand Arena.

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The pop star will be debuting her new song, "Wide Awake," written for her upcoming film Katy Perry: Part of Me, live on the BBMA stage.

Previously announced performers include Chris Brown, Justin Bieber, Carrie Underwood, LMFAO, CeeLo Green, Kelly Clarkson, Usher, The Wanted, Linkin Park and Nelly Furtado.

In 2011, Perry became the only woman in history to earn five No. 1 singles on the Billboard Hot 100 chart from the same album. Her Teenage Dream set spun off the No. 1 Hot 100 hits "California Gurls" (featuring Snoop Dogg), the title track, "E.T." (featuring Kanye West), "Firework" and "Last Friday Night (T.G.I.F.)." She nabbed another No. 1 this year, with "Part of Me," the first single from the special edition album Teenage Dream: The Complete Confection.

The Teenage Dream album debuted at No. 1 on the Billboard 200 chart in 2010 and has sold 2.2 million copies in the U.S. according to Nielsen SoundScan.

2011 was a banner year for the singer, as she was also the most-played artist on the radio according to Nielsen BDS (with 1.5 million detections of her songs registered on all formats) and had three of the top 10 most-played songs of the year ("E.T.," "Firework" and "Last Friday Night"). She was also the top selling artist of 2011 in terms of digital track sales, according to SoundScan, with 15.2 million sold. Last year, her "E.T." collabo with West was 2011's third-biggest selling digital song in the U.S., with 4.8 million sold. Collectively, her career digital song sales in the U.S. stand at 41.3 million.

Additional acts will be announced in the coming days.

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Adele, LMFAO, Rihanna, Lady Gaga and Lil Wayne are the leading finalists. Adele takes the lead as a finalist in 18 award categories, while LMFAO is a finalist in 17 categories. Rihanna lands in 13 categories this year, after leading the pack with 18 category appearances in 2011. Lady Gaga and Lil Wayne each snagged a spot in 10 categories. See a full list of finalists here.

Hosting this year's event will be Modern Family co-stars Julie Bowen and Ty Burrell.

Tickets for the 2012 Billboard Music Awards are now on sale at Ticketmaster.com and MGMGrand.com. The 2012 Billboard Music Awards will be co-executive produced by Richard D. Beckman, CEO of Prometheus Global Media and Don Mischer Productions.