Seamus Kelleher was born in Galway city in 1954. The youngest of five children, he studied piano at age nine and continued to do so until he picked up the guitar at age fourteen. Within a few weeks, Seamus knew what he would be doing for the rest of his life. By age 15, he was performing acoustic concerts at venues all over Galway. By 16 he joined a rock group called Spoonful where he switched from acoustic to electric guitar. He quickly developed a reputation for his flamboyant blues-style guitar often opening for bands such as Thin Lizzy. Seamus toured the US in 1974 with a band called Rock & Roll Circus. Shortly after the tour, he packed his bags and moved to New York where once again he quickly developed a large following. He performed all over the US and Europe with the Sean Fleming Band.