The Undertones are a Northern Irish punk band formed in Derry, Northern Ireland in 1975. The original band consisted of:

* Feargal Sharkey (lead vocals),
* John O’Neill (guitar),
* Damian O’Neill (guitar, keyboards and vocals),
* Michael Bradley (bass and vocals), and
* Billy Doherty (drums).

John O’Neill was the original main song writer, with his brother Damian and Mickey Bradley writing in various solo & combined variations for most of the remainder.