22-20s have reformed to play a free gig this September as part of the Forever Heavenly festival, which celebrates Heavenly Records' 18th birthday.
The band were originally signed to Heavenly, but split in January 2006.
At the time singer Martin Trimble explained: "I'm no longer comfortable with people's perception of what we represent."
The band will return to the stage on September 12, playing for free at London's Royal Festival Hall (Clore Ballroom) alongside Ed Harcourt. It is not currently clear if the show is a one-off, or part of a longer reunion.
Another ex-Heavenly band, The Rockingbirds, are also reforming for the festival.
Friday 12th September Royal Festival Hall - Doves / Manic Street Preachers / Cherry Ghost Royal Festival Hall Ballroom – Ed Harcourt / 22-20s / Beggars (free gig)
Saturday 13th September Queen Elizabeth Hall – The Magic Numbers / Beth Orton (performing “Trailer Park”) / Pete Greenwood Purcell Room – Edwyn Collins / The Rockingbirds (one off gig) / The Loose Salute
Sunday 14th September Queen Elizabeth Hall – Saint Etienne / The Little Ones / Dot Allison (performing “Afterglow”) Purcell Room – Nada Surf (performing “Let Go”) / Jaymay / Dr Robert
Forever Heavenly is a weekend festival celebrating 18 years in the life of Heavenly Recordings.