Best of 2011: Cheating Scandals of the Year
Mario Lopez and Ali Landry
In February, TV host Lopez finally opened up about his annulled, two-week marriage to the model in 2004 -- revealing that he "messed around" with another woman during a wild bachelor party weekend in Mexico. "I was not ready to settle down," he said. "I wasn't man enough to know how to [handle it]."