Jon Bon Jovi got a little help on one of his classic songs at a benefit he attended in England on Tuesday. Taylor Swift and Prince William joined the New Jersey rocker on an impromptu version of 'Livin' on a Prayer.'

Bon Jovi and Swift were among the celebrities who attended the Kensington Palace charity fundraiser event, which benefited Centrepoint, a homeless-youth organization that Prince William regularly supports. His mother, the late Princess Diana, helped Centrepoint throughout the '90s.

At one point during the event, Bon Jovi took the stage with an acoustic guitar and was joined by Swift and the prince. They managed to get through Bon Jovi's 1986 hit with only a few bumps along the way. You can watch a video of part of the performance above.

Swift is no stranger to singing other people's songs, so she does a pretty good job supplying backing vocals. William, on the other hand, sounds a bit shaky. But he has a day job to fall back on, doesn't he? At least he knows the words and seems to be having a good time.