Horslips are an Irish Celtic rock band that compose, arrange and perform songs frequently inspired by traditional Irish airs, jigs and reels. The group are regarded as 'founding fathers of Celtic rock' for their fusion of traditional Irish music with rock music and went on to inspire many local and international acts. They formed in 1970 and 'retired' in 1980 for an extended period. The name originated from a spoonerism on The Four Horsemen of the Apocalypse which became "The Four Poxmen of The Horslypse".

Horslips designed their own artwork, wrote sleeve-notes and researched the legends that they made into concept albums. They established their own record label, Oats, and licensed the recordings through Atco, RCA and DJM for release outside Ireland. They kept their base in Ireland, unlike previous Irish bands.  In October 1972 Horslips went to Longfield House in Tipperary and recorded their first album, Happy To Meet, Sorry To Part, in the Rolling Stones Mobile Studio. They then released another single, "Green Gravel". On the first album the melodies were mostly traditional. Jim Lockhart was on keyboards and gradually mastered other instruments including uillean pipes. Eamon Carr was on drums, including the Irish bodhran. Happy To Meet, Sorry To Part was the fastest-selling album for eight years in Ireland. The sleeve was an elaborate concertina-shaped fold-out design.  The Abbey Theatre in Dublin asked the band to provide the background for a stage adaptation of "The Tain". They leapt at the opportunity. "Tain Bo Cuailnge" (The Cattle-Raid of Cooley) is a tenth-century story written in Old and Middle Irish. It tells of an ancient war between Ulster and Connacht. The Tain was released in 1973 and had more original material alongside the traditional tunes, and greater emphasis on rock. In the same year a single, "Dearg Doom", went to number one in Germany.  Dancehall Sweethearts followed in 1974, and also balanced folk with rock. Their fourth album, The Unfortunate Cup of Tea, drifted toward pop music and was generally considered less successful. RCA ended their funding deal for the group in 1975. The group funded their next venture themselves and went back to basics. Drive The Cold Winter Away (also 1975) was their most traditional album to date. They signed with DJM Records worldwide through A&R man Frank Neilson. The Book of Invasions: A Celtic Symphony (1976), like The Tain, was an adaptation of Irish legends built into a complex story. It became their only entry in the UK Albums Chart to date, where it peaked at No. 39 in 1977.  Ever ambitious, the band now tried to make it in the United States. They brought in Jim Slye to become their manager. He later sold their publishing rights to William McBurney for PS4,000. In 1977 they produced Aliens, about the experience of the Irish in nineteenth-century America, which included very little folk music. They toured Britain, Germany, Canada and the United States. The night they played the Albert Hall in London was described by one critic as the loudest gig there since Hendrix. The Man Who Built America (1978), produced by Steve Katz of Blood, Sweat and Tears and Blues Project fame, concerned Irish emigration to the USA and was commercially their most successful album. The heavier sound did bring some acceptance in America but they lost their folk base and their freshness. Short Stories, Tall Tales (1979) was their last studio album and was panned by the record company and critics alike.

Was the band in other countries also?