The Aslan star sadly passed away yesterday at the age of 63, following a lengthy battle with cancer.
In his life, he struggled with addiction and health issues, and had cancer since 2013.
Christy’s Aslan bandmates wrote in a statement: “We are beyond devasted to have lost not just our band member, but our friend Christy, that we have had so many many years of sharing our lives with.”
President Michael D Higgins extended his sympathies to the Dubliner's family.
"For the last 40 years, Christy and his bandmates in Aslan have made an enormous contribution to the cultural life of our nation.
"In addition to their well-loved albums and hit singles such as This Is and Crazy World, Aslan will be remembered in particular for their live shows and their remarkable connection with their audience.
Bono described Christy as one of the greatest voices he ever heard. He said 'A pure signal in a world of noise. One of the greatest voices I ever heard.'
Christy's family have asked for privacy at this time.