Gwen Stefani co-wrote the song "Hey Baby".
=== Track listings ===CD Maxi-single (Europe, 2000)"Hey Baby" (Uhh, Ahh) (Radio Mix) - 3:36"Hey Baby" (Uhh, Ahh) (Club Mix) - 4:15"Uh! Ah!" - 3:38=== Charts ====== Certifications ====== Release history ===== Other versions ==Arthur Alexander on his 1962 album You Better Move On
 Their break-up inspired Stefani lyrically, and many of Tragic Kingdom's songs, such as "Don't Speak", "Sunday Morning", and "Hey You!", chronicle the ups and downs of their relationship

