Are your favorite celebrities tweeting on Twitter? You might be surprised to learn that everyone from Britney Spears to John Mayer is jumping on the Twitter bandwagon. Behaving like a typical teenager, Miley Cyrus tweets that she hates having to wake up early and Ryan Seacrest ponders whether or not men should be allowed to sport Ugg boots. Find out how to follow the hottest celebrities on Twitter right here.

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