We've rounded up the stars who have gotten themselves into some VERY tricky situations...
Michael Buble Lets 15-Year-Old Boy Sing Onstage
Back in 2010, Michael Buble let a boy sing onstage and gets a very pleasant surprise!
On ITV's An Audience with Michael Buble, the Canadian crooner is told by a mother in the audience that her 15-year-old son Sam is a great singer too.
Buble invites Sam onstage to sing Nina Simone's I'm Feeling Good... And Sam proves his mother right!
'I've got another four years before Sam wins the X Factor and drives my career into the pavement,' jokes the It's A Beautiful Day singer.
Michael Buble is playing ten shows at London's O2 Arena this summer. Maybe there will be more moments like this?
Watch the video below:
Are the group taking a break from releasing music together?