He has been described as the ‘guitar hero’ of the Celtic rock band, Horslips.
Fean passed away on Friday at his home in Shannon, Co Clare.
“For well over 50 years, Johnny was our best friend, our creative collaborator, our guitar hero,” the band said.
“Johnny wasn’t only one of the greatest guitar players ever, he was also the sweetest man in rock and roll. His immeasurable talent won him countless supporters throughout the years. We remain his biggest fans.
“He devoted his life to music, and we’ll be forever thankful that he did.”
He will be dearly missed by his wife Maggie, brothers, sisters, and his extended family.
The Horslips was formed in 1970 by Eamon Carr, Jim Lockhart, Charles O’Connor, and Barry Devlin. Fean joined two years later.
Their debut, Johnny’s Wedding, was released on St. Patricks Day 1972.
In their trilogy of albums, The Book of Invasions, Aliens and The Man Who Built America, the band explored Irish history and the forging of new frontiers in the new world.
With hits such as Dearg Doom and Trouble with a Capital T, the band became infamous for their blend of Irish trad and rock.
Over the decades, the band never forgot to include gigs in Derry.
They played a sold out St Columb’s Hall in 2020 but were forced to cancel a gig the following year due to Coronavirus.