Coldplay is a solo rock performer.
Coldplay are a British rock band formed in 1996 by lead vocalist and keyboardist Chris Martin and lead guitarist Jonny Buckland at University College London ( UCL ) . Will Champion joined as drummer and backing vocalist , completing the lineup . Creative director Phil Harvey is often referred to as the fifth member by the band . They have sold more than 80 million records worldwide , making them one of the world 's bestselling music artists . `` Yellow '' is a song by British rock band Coldplay .