Change for the better? When it comes to love, this isn't always the case. Have a look at some celebs who traded in one famous significant other for another, and judge for yourself whether the switch was an upgrade or a downgrade.
Take George Clooney. His bedroom has a revolving door, and eventually, the time came when he bid farewell to girlfriend Elisabetta Canalis. In the fall of 2011, the rumor mill went into overdrive that he had taken up with Stacy Kiebler (inset), pro wrestler-turned-actress-turned-"Dancing With the Stars"-er. The rumors proved to be true, and while Clooney was making the awards season rounds for "The Descendants," Kiebler was a fixture on every red carpet, including the Oscars in February 2012, standing by her leading man.