LeAnn Rimes takes legal action against Eddie Cibrian's ex Brandi Glanville

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This is going to sound crazy, but a source close to the LeAnn Rimes-Eddie Cibrian situation tells E! News that Ms. Rimes sent a cease and desist letter on Thursday (May 27) to Cibrian's estranged wife Brandi Glanville citing allegations of slander.