Bill Murray sang with Bono at George Clooney's wedding

New York: 'Ghostbusters' actor Bill Murray reportedly teamed up with U2 frontman Bono to sing at George Clooney's wedding last month.

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.

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