Spontaneous guest appearances are all the rage at music concerts these days – and Madonna never misses a trend.

The 57 year-old icon brought a fan on stage during her Rebel Heart Tour’s stop in Montreal, Canada on Thursday.

During the song Unapologetic Bitch from her new album, Rebel Heart, Madonna calls for a: ‘New unapologetic bitch – any volunteers?’, before her besuited dancers pull on stage a muscular fan.

After some dancing and light spanking, Madonna hands the man a ‘prize’, a banana.

The man then puts the banana into his mouth and chokes on it – something the sexual songstress evidently didn’t expect from her surprised reaction.

She the responds: ‘Well, I guess you know what to do with that banana.’

Watch the whole clip (banana action takes place around 4 minutes in):