Gwen Stefani co-wrote the song "Hey Baby".
She is the co-founder and lead vocalist of the band No Doubt that experienced major success after their breakthrough studio album Tragic Kingdom -LRB- 1995 -RRB- along with various successful singles , including `` Just a Girl '' , `` Do n't Speak '' , `` Hey Baby '' , and `` It 's My Life '' .	No Doubt	No Doubt	Tragic Kingdom	Tragic Kingdom	Just a Girl	Just a Girl	Hey Baby	Hey Baby (No Doubt song)
`` Hey Baby '' is a song written by Gwen Stefani , Tony Kanal , Tom Dumont , and Bounty Killer for American rock band No Doubt 's fifth studio album , Rock Steady -LRB- 2001 -RRB- .	No Doubt	No Doubt	Bounty Killer	Bounty Killer	Rock Steady	Rock Steady (album)	Gwen Stefani	Gwen Stefani	Tony Kanal	Tony Kanal	Tom Dumont	Tom Dumont
