Gwen Ren�e Stefani Rossdale (pron-en??w?n st??f??ni; born October 3, 1969) is an American singer and fashion designer. Stefani is the lead vocalist for the rock band No Doubt. With previous material ranging from punk rock to new wave music, their third wave ska oriented third studio album Tragic Kingdom (1995) was a success, selling 16 million copies. It spawned the singles "Just a Girl", "Spiderwebs", and "Dont Speak". The bands popularity went into decline with its fourth album, Return of Saturn (2000), but Rock Steady (Rock Steady (album)) (2001) focused on dancehall production traits, and generally received positive reviews.

Stefani recorded her first solo album Love. Angel. Music. Baby. in 2004. The album was primarily inspired by music of the 1980s, and emerged an success with sales of seven million. The albums third single "Hollaback Girl" was the first U.S. digital download to sell one million copies. Stefanis second solo album The Sweet Escape (2006) yielded "Wind It Up (Wind It Up (Gwen Stefani song))", a moderate success, and "The Sweet Escape (The Sweet Escape (song))". Including her work with No Doubt, Stefani has sold more than 40 million albums worldwide. She won the Worlds Best-Selling New Female Artist at the World Music Awards 2005.

In 2003, she debuted her clothing line L.A.M.B. and expanded her collection with the 2005 Harajuku Lovers line, drawing inspiration from Japanese culture and fashion. Stefani performs and makes public appearances with four back-up dancers known as the Harajuku Girls dancers. She married British grunge musician Gavin Rossdale in 2002 and they have two sons: Kingston James McGregor Rossdale, who was born May 26, 2006, and Zuma Nesta Rock Rossdale, who was born August 20, 2008.