Coldplay suggested earlier this year that their new album could be their last (sob), and over the weekend the band previewed a new song which could be part of the swansong.<br />The track is called 'Amazing Day' and is a soft, swaying number that steadily builds throughout, feeling like a continuation of the more vulnerable sound of their last album Ghost Stories.<br />Frontman Chris Martin served as curator for this year's Global Citizen Festival in Central Park, New York, where Coldplay debuted the new track.<br />The band were also joined on stage by Ariana Grande for a rendition of her album track 'Just A Little Bit Of Your Heart', which was co-written by One Direction's Harry Styles.
