Check out Prince William singing Livin' On A Prayer with Bon Jovi and Taylor Swift 

Last night Bon Jovi acquired two new members for a special, acoustic rendition of their smash hit, Livin' On A Prayer, at a charity gala, which took place at Kensington Palace. 

Prince Williams shocked the audience when he took to the stage with Taylor Swift to join the superstar rocker for an 'off-the-cuff' performance. 

The Duke of Cambridge, who attended the event without wife Kate, met Taylor and Bon Jovi at a drinks reception before the festivities kicked off. 

However, no one could have imagined how the evening would end when Bon Jovi asked the Prince to join him on stage, he agreed but only if Taylor joined him.

Check out what happened below: