In Hollywood, it's a rarity for a relationship to last longer than a few years ... and when millions of dollars, prenups, and other legalities are involved, the break-ups can be messy (and expensive).
What adds even more mess to a Hollywood relationship? Infidelity. While not every celebrity on this list has outright admitted to cheating, they have all been — at the very least — publicly accused of straying outside their relationships.
However, not every couple has broken up after cheating allegations surfaced. Some have made it work and are stronger than ever.
Most recently, the Foo Fighters' Dave Grohl announced he had welcomed his fourth daughter from a relationship outside of his marriage to Jordyn Blum. According to his post, Grohl is working on earning his wife's forgiveness.
Here are 26 of the most well-known cheating scandals in recent Hollywood history.