Frontman Dan Smith and his bandmates - Kyle Simmons, Chris ''Woody'' Wood and William Farquarson - welcomed the 20-year-old singer, who'd performed her own set earlier in the day, onto the main stage for a rendition of their track 'No Angels', which is a cover of The xx's 'Angels' and TLC's 'No Scrubs'.
The London-based band, who shot to fame with their debut album 'Bad Blood', also played a number of their hit singles including 'Things We Lost In The Fire', 'Pompeii' and 'Of The Night', with Dan apologising for his ''terrible dancing'' during a short break.
Following on from Bastille's crowd-pleasing performance, Foals took to the main stage for their headline set while Disclosure attracted thousands of festival-goers to the Disclosure presents Wild Life stage.
The DJ-ing brothers ended Sunday night's music with tracks including 'F For You' - which saw the song's collaborator Mary J. Blige appear via video - 'White Noise', 'You & Me' and the Sam Smith-featuring 'Latch'.
The 'Drop It Like It's Hot' hitmaker, who claimed he was ''in the mood for some old school s**t'', performed tracks that spanned his 22-year career in the music industry including 'P.I.M.P', 'Next Episode', 'Gin And Juice' and 'California Gurls'.
Ed Sheeran has admitted the personal nature of his songs has caused him to lose a few friends.
All I Want For Christmas is widely regarded as one of the best festive tunes every year
Pearl Jam announced 14 dates in the UK and Europe in June and July 2018.