"Glad All Over" is a song written by Dave Clark and Mike Smith and recorded by The Dave Clark Five. In January 1964, it became the British group's first big hit, reaching No.1 on the UK Singles Chart. In April 1964, it reached No.6 on the American US Billboard Hot 100 chart, becoming the first British Invasion hit by a group other than The Beatles. It promptly kicked off the DC5 vs Beatles rivalry, taking the massively successful I Want To Hold Your Hand off the UK number 1. It was also No.1 in Ireland, No.3 in Australia and No.2 in Canada. It reached No.4 in the Netherlands and No.16 in Germany. "Glad All Over" was the No.2 selling single of 1964 in the UK (behind "Can't Buy Me Love" by The Beatles), and also had sufficient UK sales in November and December 1963 to make it the 58th best-selling single of 1963; put together these statistics suggest UK sales for "Glad All Over" of around 1,000,000 units by the end of 1964.