Photos: When Prince William joined Taylor Swift onstage to sing Livin' On A Prayer

Taylor Swift, Bon Jovi and Prince William walk into a bar. Sounds like a joke set-up right? Well, not if it’s a karaoke bar. At the Winter White Gala this week, which was held at the Kensington Palace in support of the homeless charity Centrepoint, Prince William decided to join in as the two musicians belted out ‘Livin’ On A Prayer’ onstage.