Billboard Bits: 50 Cent Raises Eyebrows on Twitter, Katy Perry Tapped for 'SNL' Premiere

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Billboard Bits serves up the best bite-sized nuggets of music news and gossip.

50 Cent Takes on Jay-Z, Diddy via Twitter

After taking a short break from Twitter last weekend, 50 Cent began tweeting nonstop on Monday (Sept. 6) and raised some eyebrows with his unfiltered subject matter. The rapper traded barbs with Perez Hilton, talked about running into Jay-Z at a show and brushed off Diddy's business advice. "I talk to puffy he said n***a da shit you be doing is bad for business we can make a lot of money together. so that's the last puffy hit lol," 50 wrote.

Katy Perry Performing on 'SNL' Premiere

Katy Perry is set to take the 'Saturday Night Live' stage for the NBC show's season premiere on Sept. 25, EW reports. The singer will be joined by host Amy Poehler, who starred on "SNL" for seven years, as well as four new cast members. (EW)

Morrissey Sparks Racism Controversy with Anti-Chinese Comments

Morrissey has earned accusations of racism following his derogatory comments toward the Chinese in an interview with the Guardian Weekend magazine, according to Spinner. Discussing the poor treatment of animals in China, the former Smiths singer said, "You can't help but feel that the Chinese are a subspecies." A spokesperson for the Love Music Hate Racism group called the comment "crude racism" that will be hard for Morrissey to recover from. (Spinner)

Willow Smith Makes Singing Debut in 'Whip My Hair'

Willow Smith, Will Smith's 9-year-old daughter, has released her first single, "Whip My Hair," according to Buzzfeed. The song's knocking beat and catchy vocal refrain of "I whip my hair back and forth!" make for an impressive debut. (Buzzfeed)

Miley Cyrus Cuts Loose in Paris

Photos of Miley Cyrus dancing with "Twilight" actress Ashley Greene at Paris nightclub VIP Room were released online, according to Us. The 17-year-old pop singer, who was wearing a lace top and clutching a lollipop, is currently overseas filming a racy role for comedy "LOL: Laughing Out Loud." (Us)

Bruno Mars, Mary J. Blige, Swizz Beatz Added to VMA Performers

A new round of performers and presenters has been announced for the MTV Video Music Awards, with Mary J. Blige and Swizz Beatz performing alongside Drake and Bruno Mars set to make his VMA debut, according to MTV. The casts of "Glee" and "Jersey Shore" will also be on hand to present awards at the Sept. 12 ceremony. (MTV)

(Reporting by Jason Lipshutz and Monica Herrera)