Locked and Loaded

Used as a tool to engage with fans, Twitter has been a must-have for celebrities. While most micro-blogging public figures are of the reality television department, one famous A-Lister just joined the social media revolution: Angelina Jolie.

The actress, mother and humanitarian is now known by her handle, @angelinajolie, but she's not yet ready to make the public plunge. According to Us Magazine, Jolie obtained the account and then locked it so no one else could have that username. With a source adding that the star might become an active tweeter "later this year," perhaps her account will soon be unlocked. Possible tweets: charity-related items, link sharing and if we're lucky, info on the kids!

Don't forget to follow The A List on Twitter @aglicksman