 Coldplay released " Clocks " in Europe on 24 March 2003 as the album 's third single . The single was issued with two B @-@ sides : " Animals , " which was one of the band 's favourite songs performed on tour but was not included in the album , and " <unk> of Waves . " The single 's cover , created by <unk> <unk> as with the album 's and its other singles , is a portrayal of Chris Martin . Across the United States , while preparing " The <unk> " as the album 's second release , Coldplay 's US label felt the song failed to " provide enough of a blood rush for American listeners ; " instead , they released " Clocks " as the second single in the US . 
