Tony Ashwin Kanal is a British-American musician, record producer, songwriter, and animal rights activist. Kanal is the bassist and co-writer for the American rock bands No Doubt and Dreamcar. His musical work outside of the band includes producing and songwriting for artists such as Pink, Weezer, Elan Atias and No Doubt bandmate Gwen Stefani, among others.
Thomas Martin Dumont is an American guitarist and producer. Dumont is a member of third wave ska band No Doubt, and during the band's hiatus, he began Invincible Overlord as a side project and produced Matt Costa's Songs We Sing.