Chuck E. Cheese brings peace to all.

LeAnn Rimes and fiance Eddie Cibrian made nice with Brandi Glanville, Cibrian's ex-wife, at a Chuck E. Cheese restaurant over the weekend.

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The infamously combative trio were all smiles (in photos posted at TMZ) for a good cause: the 8th birthday party of Jake, Cibrian and Glanville's older son.

In one snapshot, Rimes, 28, grins sitting next to Glanville, 38, as they both sit alongside birthday balloons.

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The women have been sworn enemies since Cibrian, 37, cheated on Glanville with Rimes back in 2009; Rimes was then married to Dean Sheremet.

But last month, the duo (who even once sat in therapy sessions to hash out their differences) called a Twitter truce.

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"As a collective unit, Brandi and I would like all negativity to cease toward one another," the "How Do I Live" singer wrote.

"Please for our families' sake stop the hate now and let us live our lives."

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