What was coldplays first song?

Coldplay's first song is often considered to be "Bigger Stronger," which was included on their debut EP, "The Safety EP," released in 1998. This track helped establish the band's early sound and garnered attention leading up to their first studio album, "Parachutes," released in 2000. "Yellow," from that album, became their breakout hit, but "Bigger Stronger" marked the band's initial foray into music.