Leann Rimes and Eddie Cibrian Affair

Leann Rimes' husband should stay away from grocery stores this week.

Because the latest issue of US Weekly has some bad news for him on its cover.

According to US, Rimes, 26, who is married to former backup dancer Dean Sheremet, is getting hot and steamy with her TV movie costar, Eddie Cibrian.

Cibrian is also married, and has two children. Sources tell the magazine that Rimes and Cibrian, 35, started their affair on the set of their upcoming Lifetime flick, "Northern Lights."