No Doubt was formed in Anaheim, California, by Gwen Stefani's brother, Eric Stefani, and their friend John Spence. The name 'No Doubt' was the favorite catchphrase of John Spence, the band's original lead singer. He would frequently say 'no doubt' in response to almost anything. Tragically, Spence took his own life in 1987, just before the band was set to play a showcase for industry executives. The band considered breaking up but decided to continue in his honor, with Gwen eventually taking over lead vocal duties. After struggling for several years in the ska-punk scene, they achieved massive success with their 1995 album 'Tragic Kingdom,' featuring hits like 'Don't Speak' and 'Just a Girl.' The band's name remains a permanent tribute to their founding member's memory and his optimistic catchphrase.