The rich, famous and beautiful aren't immune from the woes of infidelity and heartbreak. In fact, some of Hollywood's hottest celebrities have been branded with a scarlet letter for stepping out on their significant others. And sometimes bouncing back from a tarnished relationship can be a public relations nightmare.  

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Check out this list of 10 celebrity cheaters for proof that Hollywood is rife with steamy, illicit affairs. Only the strong survive... 

1. Liam Hemsworth

Well-muscled Aussie actor Liam Hemsworth reportedly stepped out on his on-again, off-again leading lady Miley Cyrus. The other woman in this too-hot-to-handle love triangle was none other than Betty Draper. More accurately, it was blond bombshell January Jones, who portrays the icy Mrs. Draper on AMC's Mad Men. The alleged affair kicked off after this year's Oscars, when the pair was spotted canoodling at an after-party and later shared a ride home. Jones, for her part, thought the Hunger Games star was single at the time.