The band are the latest to be confirmed to appear as part of a series of gigs at the venue in 2026.
Snow Patrol are the first headliners announced for next June's four-day music festival in Liverpool.
Headlining the festival's eighth instalment are 50 Cent, Biffy Clyro and Snow Patrol.
All you need to know about the annual Belfast festival as it gears up for 10 nights of music over three weeks.
The Snow Patrol singer has written a book about the "numb journey" he went on after his father's death.
Lightbody's father, who had dementia, died in a nursing home in December 2019.
A Derry girl band who supported Snow Patrol say it was one of the biggest nights of their lives.
The Northern Irish band already have sold out dates at Delamere Forest and Westonbirt Arboretum.
Molly and Ruby Mulholland from Glengormley said they "couldn't believe" they got to perform for singer Ed Sheeran.
