'Extra' Exclusive: Carrie Fisher Drops 50 Lbs., Weighs In on Jackson Trial

Actress, author and Jenny Craig success story, Carrie Fisher sat down with "Extra" and said, "I lost 50 pounds."

Fisher said she was motivated to shed the extra weight because "I looked awful. I'd like to say it was my health, and be like somebody who's a good role model, [but] that was a byproduct."

The 55-year-old has penned a new book, "Shockaholic," in which she details her electro-convulsive shock therapy. Carrie says the electro therapy is to treat her bipolar disorder, saying, "It actually has really worked for me."

In the book, Fisher opens up about her struggle with depression and sobriety, and shares private stories about people who have touched her life the most, including her friend Michael Jackson. The actress recalled spending Christmas with Jackson, saying, "It was sweet. The kids were all in their pajamas... you know, Michael was just the sweetest man."

Carrie believes Michael's personal physician Dr. Conrad Murray is guilty. Murray is currently on trial for involuntary manslaughter and faces up to four years if convicted. "[Dr. Murray] put these drugs into him. He [Murray] knew the dangers of it."

"Shockaholic" is available in bookstores now.