Coldplay released a stripped down version of ‘Everglow’, a track from their LP Head Full of Dream which they release last year. As quoted by Rolling Stones:

“Chris Martin sounds nearly unaccompanied. He’s joined by brief harmony vocals and splashes of ethereal electric guitar. “If you love someone, you should let them know,” he sings, stretching his voice to a mighty falsetto”

You can check out the band performing it live below: