Michael McIntyre duets with Michael Buble filming his Big Show

Michael McIntyre enjoyed an impromptu duet with Michael Buble while filming for this weekend’s Big Show.

This Saturday on Michael McIntyre’s Big Show will see singing sensation Michael Bublé perform the hit When You’re Smiling.

After the performance – in scenes that won’t make it to air in the show – Michael offered up some tips on how to sing.

In this behind the scenes out take which will not be broadcast, Michael McIntyre shows off his skills as he duets with Michael Bublé.

You can watch the pair’s surprise sing-a-long below…

On the duet, Michael McIntyre said: “I had a great moment with Michael Bublé where I asked if he could teach me to sing like him and he said why don’t we sing together, so we did!

“It was great because my wife and children came to watch his performance.

“I did every dance move I could think of in-between, I even greatly embarrassed my children by doing that floss dance very badly.

“It certainly felt very showbizzy, what a charming man Michael Bublé was, very generous and game for a laugh.”

You can see Michael Bublé’s full performance on Saturday’s show alongside a double send to all with presenters Eamonn Holmes and Ruth Langsford, Rita Ora has a special message for Michael’s son.

Plus, there’s another amazing performance from the Unexpected Star to close the show, not to mention the hilarious Midnight Gameshow returns and Michael enlists the help of TOWIE star Joey Essex to surprise contestant Keeley.

Michael McIntyre’s Big Show continues Saturday nights on BBC One.

The latest episode airs this Saturday at 8.10pm.

You can catch up and watch live online via the BBC iPlayer.