Christy Dignam was "devastated" when he was told by doctors he should not perform with Aslan at Dublin's 3Arena.
The Dublin band were due to play at the venue this Saturday, September 17 to celebrate their 40th anniversary with a "lot of special guests joining them on stage", according to guitarist Billy McGuinness.
The band announced today that the show would have to be postponed upon doctors' advice to frontman Christy, who is battling incurable rare blood disease amyloidosis.