Bruce and Emma Heming-Willis

Amidst all the buzz about his ex-wife's alleged marital problems, Bruce Willis and wife Emma Heming-Willis are expecting a baby, his rep told People.

A statement said the couple "are overjoyed with this news and they look forward to welcoming this newest addition into their family."

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The child will be the couple's first together, and fourth for Willis. His other three children, Rumer, Scout, and Tallulah, are from his marriage to Demi Moore.

Willis, 56, and his model/designer wife, 35, married in March 2009.