Prince Harry joined Coldplay on stage during the band's finale at their Kensington Palace gig in aid of his charity Sentebale, along with a choir of young children from Lesotho.
Waving his hands he shouted to the audience, "Thank you for standing out in the rain, thank you to the choir that has come all the way from Lesotho. Please drive home safely and carry the work of Sentebale. And thank you to Coldplay - thank you so much, you've rocked the palace, you've rocked the palace!"
Take a look at the cute video clip.