Jillian Michaels, the tough-as-nails fitness trainer from NBC's Biggest Loser, tells Life & Style that she didn't know about the Tiger Woods sex scandal until she saw it on Twitter. But she says the news didn't surprise her.

"He put the moves on a very good friend of mine," Jillian says. Though she didn't say when the incident occurred, "I knew he was an ass**** ages ago, I did," she said at the Biggest Loser season-eight finale in LA on Tuesday night. "Sorry. I didn't need to watch the news to find that out."

Photo Credit: Courtesy of NBC