Sure, celebs make money on their movie, record, TV and sports contracts, but it's endorsements that really bring home the bacon. But when bad behavior makes a brand change their mind about associating with a certain star, losing the sponsorship can be pretty devastating. Keep clicking to find out why Charlize Theron, Mary-Kate Olsen and more celebs have had to kiss their endorsement deals goodbye.
This cyclist had some pretty strong endorsements, including ones with Nike, RadioShack and Anheuser-Busch, until word got out that he wasn't the clean-cut guy he pretended to be. What a dope!