Michael Buble - Buble Wants Williams Duet

MICHAEL BUBLE is eyeing a duet with ROBBIE WILLIAMS - because he's a huge fan of the British singer.

The Canadian star loves listening to the Angels hitmaker's tracks, and could see himself collaborating with the 35 year old in the future.

He says, "I'm a huge fan of his and would love to do a duet some time."

Buble has also defended Williams after his comeback performance on U.K. TV talent show The X Factor was widely criticised by viewers who speculated the pop star had been drinking backstage.

He adds, "People are very quick to jump on a guy and say 'he's high' or 'he's drunk' but Robbie was getting up on stage for the first time in three years. Give the guy a break.

"I can seem a bit loose and apparently some people thought I was drunk. So I felt for Robbie."