LeAnn Rimes
LeAnn Rimes and husband Eddie Cibrian started a fling in 2009 on the set of Northern Lights – while they were both married to other people. Cibrian’s wife at the time, Brandi Glanville rode her husband Eddie Cibrian’s cheating scandal with LeAnn Rimes all the way to a starring role on a reality show, so she wasn’t about to miss an opportunity to go public about her own cheating with Cibrian.