Coldplay are famed for bringing on brilliant guests during their live shows for a singsong of a random cover or a duet of that guest's hit track. The final UK leg of their Music of the Spheres world tour is in Cardiff and there's a wealth of local voices who might have received a phonecall to hop up on stage with Chris Martin, Jonny Buckland, Guy Berryman and Will Champion.
During the Music of the Spheres tour Coldplay have been joined by the likes of Steve Coogan, who appeared as Alan Partridge, Stormzy, Manchester rapper Aitch, BTS member Jin, Natalie Imbruglia and Shaznay from All Saints.
The last time Coldplay were in Wales actor and comedian Rob Brydon joined Chris to sing as well as student Eilir Owen Griffiths and James Jones from Rhos Male Voice Choir to sing Mae Hen Wlad Fy Nhadau - read more on that here.
