After releasing three EPs without a hit song, Coldplay charted into the Top 40 with the lead single from "Parachutes", "Shiver". Released in March 2000, it reached number 35 on the UK Singles Chart. June 2000 was a pivotal moment in Coldplay's history: the band embarked on their first headlining tour, including a showing at the Glastonbury Festival. The band also released the breakthrough single "Yellow". The song shot to number four on the UK Singles Chart and placed Coldplay in public consciousness. "Yellow" and "Shiver" were initially released as EPs in the spring of 2000. The former was later released as a single in UK on 26 June 2000. In the United States, the song was released as the lead single off the then-untitled debut album. In October 2000, the track was sent to US college and alternative radio outlets.