Lindsay Lohan's Adderall addiction has been well documented at this point, but it may all be the result of a medical misdiagnosis and largely responsible for her increasingly erratic behavior over the past several months (or years).

Doctors at UCLA Medical Center, where she is currently in rehab, believe Lindsay was misdiagnosed with Attention Deficit Hyperactivity Disorder (ADHD).

Posted in: Lindsay Lohan

After weeks of rumors over whether or not the incomparable Britney Spears would actually appear personally on the Glee episode in her honor this fall, the pop icon confirmed it this week via a Twitter pic of herself and her assistant on the set.

Now, two additional Britney Spears pictures have emerged featuring the singer and a cast member of the Fox series! Check them out below - Britney's posing here with Heather Morris, who plays Brittany, fittingly, and creator Ryan Murphy:

Posted in: Britney Spears

Last night's Jersey Shore paled in comparison to last week's for the simple fact that the tired act that is Ronnie and Sammi overshadowed everything else.

Don't get us wrong, there were plenty of absurd scenes and Jersey Shore quotes to make it worth our while, but these two need to get their act together.

Posted in: Snooki

Already mature beyond her years, Demi Lovato celebrates a milestone today: the singer/actress turns 18!

Send in your birthday wishes right now, as Demi might need a few words of encouragement. She's currently touring with The Jonas Brothers and doing publicity for Camp Rock 2, all of which places her alongside ex-boyfriend Joe Jonas.

Posted in: Demi Lovato

Make room for what will be one of the more gorgeous celebrity babies, even by Hollywood standards: Miranda Kerr is pregnant! She confirmed it herself!

The supermodel and Orlando Bloom are expecting their first child together, the Australia native tells the Spanish edition of Vogue in its September issue.

Posted in: Orlando Bloom

4,672 strikeouts. 354 wins. Seven Cy Young awards. Three counts of making false statements, two counts of perjury and one court of obstructing U.S. Congress.

Roger Clemens, everybody!

Posted in: Roger Clemens