Gwen Stefani performs.
Gwen Renée Stefani ( [ gwɛn_ˈstəˈfɑːni ] born October 3 , 1969 ) is an American singer , songwriter , fashion designer , actress , and television personality . She is the co-founder and lead vocalist of the band No Doubt that experienced major success after their breakthrough studio album Tragic Kingdom ( 1995 ) along with various successful singles , including `` Just a Girl '' , `` Do n't Speak '' , `` Hey Baby '' , and `` It 's My Life '' . , `` Rich Girl '' , and `` Hollaback Girl '' , the latter reached number one on the Billboard Hot 100 while also becoming the first US download to sell one million copies . `` Rich Girl '' is a song by American singer and songwriter Gwen Stefani from her debut solo studio album , Love . `` The Sweet Escape '' is a song by American singer and songwriter Gwen Stefani from her second studio album of the same name ( 2006 ) .