Buzz Bites (10/20/10): Katy Perry To Possibly Guest On Rihanna's New Album

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+ Rihanna has revealed that her pal Katy Perry might appear on her upcoming album, Loud. (MTV News)

+ Kanye West is planning five different album covers for his My Beautiful Dark Twisted Fantasy album. No word on how many of those will wind up banned. (MTV Rap Fix)

+ Watch Shakira's performance from last night's "Dancing With The Stars." (Idolator)

+ Rumors are flying that Beyoncé is pregnant. We'll believe it when we see the baby bump, honestly. (That Grape Juice)

+ Taylor Swift's Speak Now album will reportedly feature a musical letter to John Mayer called, what else, "Dear John." (PopEater)