In parts two and three of its retrospective on 2011, Twitter takes a look at the famous faces that signed up for their very own account and the hottest topics and hashtags this past year.And with a list including Charlie Sheen, the U.S. Secret Service, the Egyptian revolution and McDonald's McLobster, they're quite the eclectic bunch.
Read More: Twitter’s #YearInReview: The Newest Accounts And The Hottest Topics
