The 19-year-old singer and Duke of Cambridge helped belt out the famous song before he presented Bon Jovi with the Centrepoint Great Britain Youth Inspiration Award for his humanitarian work.
Earlier in the night, Taylor hit the blue carpet at the event, which provides housing and a range of services to young homeless people in the U.K.
Watch the trio on stage together below!
Taylor Swift -”Livin’ on a Prayer” with Bon Jovi & Prince William
Posted to: Taylor Swift