"I'm Gonna Be " is a song written and performed by Scottish duo the Proclaimers, and first released in August 1988 by Chrysalis as the lead single from their second album, Sunshine on Leith (1988). The song reached number 11 in the UK Singles Chart on its initial release and topped the charts of Australia, Iceland, and New Zealand.

The Proclaimers are a Scottish rock duo formed in 1983 by twin brothers Craig and Charlie Reid. They came to attention with their 1987 single "Letter from America", which reached No. 3 in the United Kingdom, and the 1988 single "I'm Gonna Be ", which topped charts in Australia, Iceland and New Zealand. The duo's biggest album, Sunshine on Leith (1988) has been certified multi-Platinum in Australia and Canada, selling over 2 million copies worldwide, including around 700,000 in the United States. The Proclaimers have sold over 5 million albums worldwide.