Bill Murray reportedly teamed up with U2 frontman Bono to sing at George Clooney's wedding last month (Sep14).

The unlikely pair joined forces with model/actress Karen Duffy at a post-wedding brunch during the four-day celebrations in Venice, Italy, and they serenaded Clooney and his new bride Amal Alamuddin with Cole Porter songs, according to New York Post gossip column Page Six.

A source tells the publication, "They sang Cole Porter songs with a eight-piece orchestra and called themselves 'The Venetian Blinds'."