Kingston, Zuma, and Apollo are the sons of which American female pop star?

Kingston, Zuma, and Apollo are the sons of which American female pop star?
Gwen Stefani
Gwen Renée Stefani is an American singer and songwriter. She is a co-founder, lead vocalist, and the primary songwriter of the band No Doubt, whose singles include “Just a Girl”, “Spiderwebs”, and … Wikipedia