00:02It's one of the world's most popular karaoke tunes so maybe Prince William had
00:07already had a little practice at singing Bon Jovi's Living on a Prayer.
00:11But that's not quite the same thing as joining rock legends Jon Bon Jovi and Taylor Swift on stage to
00:17belt out the song.
00:57The trio were the main attraction at the Winter War.
00:59It's the White's Gala at Kensington Palace which supports homeless charity Centrepoint.
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