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.

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.

While followed by 4.6 millions Twitter users, Russell’s elite “following” list is now down to just 77 people, including “Get Him to the Greek” co-star Jonah Hill, Rainn Wilson of “The Office” fame, Ellen DeGeneres and Conan O’Brien.

At one point, Katy Perry mentioned that, after Teenage Dream, she needed to take a break. But during the first few months of 2012, Perry rolled out Teenage Dream: The Complete Confection, a deluxe version of her 2010 hit album, and its single “Part of Me.” Additionally, she’s planning to have a concert movie hit theaters, and a second Complete Confection single is coming at the end of May.

Yet, Perry reiterated earlier statements at NARM this past week, saying:

“I swear, after this song, I’m taking a f—ing vacation.”

“Wide Awake” is the second Complete Confection single and is scheduled for release later in May. Unlike the additional tracks created for Complete Confection, “Wide Awake” was written specifically for Part of Me 3D, the concert film scheduled for a July 5 release.

At NARM, Perry thanked the music industry and then later discussed her Christian upbringing’s influence. About the former, she said:

“I have to say that I do a lot to sell my records. I do the right things… I work very hard! I like to sell out in all the best ways.”

Although Perry may take a while to put out a fully new album, bubble gum pop with a slight electronic influence may no longer be her sound. Going through a goth phase currently and saying, at one point, that her music will be darker, practically anything is possible.

Considering the slightly more serious nature of “Part of Me” and Perry’s new look

the once typically cheery Katy Perry is going for a much darker look nowadays. A purple-haired Perry wore a sheer black dress and some super dark lipstick at the 2012 NARM Music Business Association Awards, held at the Hyatt Regency Century Plaza Hotel in Los Angeles last night (May 10). (“Oh my goth,” tweeted Katy, along with a pic of her flashing “heavy metal” hands on top of what looks like… a cloud? She’s sure come a long way since her Teenage Dream cover.)

May 10 – NARM 2012 Music Biz Awards in Los Angeles [HQ] x21

“Katy’s music was absolutely everywhere over the past year, and her dominance of the singles charts is a nearly unprecedented accomplishment,”

said NARM President Jim Donio before presenting the pop star with the award for Artist Of The Year.

May 10 – NARM 2012 Music Biz Awards in Los Angeles [MQ] x99

“She has unquestionably blossomed into a true global superstar and has earned this Award in every sense of the word.”

At least Katy didn’t take her newfound goth look to heart, since she was all smiles while posing with her trophy.