Originally formed at school by Gwen Stefani and her brother Eric using the name Apple Core, the band No Doubt built a keen following around California in the early 1990s, but their ska-pop sound failed to break a market swamped with hard rocking grunge bands. Detailing the break-up of Stefani and bassist Tony Kanal's relationship, third album 'Tragic Kingdom' finally gave the group their big break, topping the US charts, selling over 18 million copies worldwide and producing the huge international hit 'Don't Speak' - a US number one for 16 consecutive weeks. Its follow-up, 'Return of Saturn' in 2000, reached number two in the US but made little impression, before the swaggering, funky cool of 2001's 'Rock Steady' produced the hits 'Hey Baby', 'Hella Good' and 'Underneath It All'. No Doubt went on hiatus in 2004 with Stefani pursuing a successful solo career, but they reformed in 2008 to tour with Paramore, Panic! At The Disco and Katy Perry. In 2012 they released brand new record 'Push and Shove'; although the lead single 'Settle Down' only made it to number 34, the album managed a number three position on the Billboard Hot 100. Another break was taken in 2013 but the band continue to come together for festivals and group concerts.