Country singer LeAnn Rimes is having an affair with co-star Eddie Cibrian, reveals Us Weekly. Security cameras caught the couple holding hands and kissing over dinner last week. They also checked into a hotel for three hours, the magazine reports. Both are married and star together in the Lifetime movie Northern Lights. Rimes is 26; Cibrian is 35, with two children. (More LeAnn Rimes stories.)