As of IWBFT, the band has reached international fame across Europe and Asia, but they have yet to really break trough in the USA. They have released an album and several singles.
The band currently has three members, who all play their own instruments:
Jimmy: lead singer, guitar, keys, and a launchpad live.
Rowan: backup vocals, bass guitar, guitar
Lister: drums, backup vocals 
Jimmy and Lister are childhood friends, which could possibly mean Lister, who they met in their teenage years, joined the band later on. All three members are close friends, although Jimmy and Rowan are a bit closer than Lister is to them.