[1] Simms formed the band It Hugs Back with schoolmates Paul Michael, Jack Theedom and Will Blackaby.
[6] With fellow Wire-mate Graham Lewis Simms joined bassist Mike Watt (Minutemen) and drummer Bob Lee to form FITTED.
[10] Initially formed as a one-off group for Wire's DRILL festival in Los Angeles,[10][11] the four decided to record an album.
[12] First Fits, their debut album, was recorded from 2017 to 2018[13] with Lewis and Watt trading lead vocals.
[14] Simms, Verity Susman and Kat Duma received a Canadian Screen Award nomination for Best Original Music in a Documentary at the 12th Canadian Screen Awards in 2024 for their work on Tramps!.