There is more than one artist with this name (the Irish for light) : 1) an American Irish folk band. 2) a French rock band: 1. Solas is an American musical group officially formed in 1996, playing Irish traditional music as well as original compositions that dabble in the country, rock, and americana genres. The band's original lineup consisted of Seamus Egan (flute, tenor banjo, mandolin, tin whistle/low whistle, guitar, bodhrán), Winifred Horan (fiddle), John Doyle (guitar), John Williams (accordian), and Karan Casey (lead vocals).