This Week In Celebrity Tweets: Demi Lovato Returns, Rihanna Reaches Four Million Followers, And OMG A Sneak Peek Of Britney's New Video

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We're still coming down from our mtvU Woodie Awards high, but the show must go on. Let's talk Twitter!
Demi Lovato returned to Twitter this week after logging off for a bit during her stint in a treatment facility. Glad to see you back and healthy, girl! Katy Perry tweeted about some "#popstarproblems" (we [...]Source: http://buzzworthy.mtv.com/2011/03/18/demi-lovato-rihanna-britney-spears/Alecia Elliott Carla Gugino Deanna Russo Anne Marie Kortright Olivia Wilde Leelee So

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