Gwen Renée Stefani (pron.: /stəˈfɑːni/; born October 3, 1969) is an American singer-songwriter, fashion designer and occasional actress. Stefani is the co-founder and lead vocalist for the rock and ska band No Doubt. Stefani recorded Love. Angel. Music. Baby., her first solo album, in 2004. Inspired by music of the 1980s,[2] the album was a success with sales of over seven million copies.[3] The album's third single, "Hollaback Girl", was the first US digital download to sell one million copies.[4] Stefani's second and final solo studio album, The Sweet Escape (2006), yielded "Wind It Up", "4 in the Morning", and the highest-selling single "The Sweet Escape". Including her work with No Doubt, Stefani has sold more than forty million albums worldwide.[5]