Ronan Collins started his show business career as a member of a showband playing drums.

His radio show on RTÉ Radio 1 has been running for many years. He began his national radio career on RTÉ Radio 2, having worked on pirate radio. He presented the celebrity game show Play the Game from 1984 to 1995. He also used to present the Lotto draw and most recently A Little Bit Showband (2008–2009).

Ronan has commentated on the Eurovision Song Contest for RTÉ One television. He has also been a compere at the heats of the Castlebar Song Contest.