Bruno Tonioli stunned Strictly Come Dancing fans when he returned to the festive special, which aired on Christmas Day, to sing.
The Italian choreographer, 67, was a judge on the BBC show for 18 years before stepping down from the role due to his Dancing With the Stars commitments.
Fans loved Bruno's witty one-liners when he was on the UK panel and were delighted when he rocked up in the studio on Sunday.