 " What You Waiting For ? " is a song by American singer and songwriter Gwen Stefani from her debut solo studio album , Love . Angel . Music . Baby . ( 2004 ) . Written by Stefani and Linda Perry , the song is the album 's opening track and was released as Stefani 's debut solo single . " What You Waiting For ? " details Stefani 's lack of inspiration , fear of producing the album , as well as her reaction to pressures exerted by her record label . It is primarily an electropop song and introduces Stefani 's four back @-@ up dancers , the Harajuku Girls , who had a major input into the album 's production . 
