Gwen Stefani: Bikini Babe in Cannes!

Gwen Stefani shows off her toned bikini body on a luxury yacht on Monday (May 23) in Cannes, France.

The 41-year-old No Doubt rocker relaxed in the sun with her sons, Kingston and Zuma, and helped Kingston work a fishing pole!

Last week, Gwen‘s hubby, Gavin Rossdale, showed off a killer six pack as he relaxed with the boys!

FYI: Gwen is wearing L*Space‘s “Beach Party” halter and “Tori” bottoms in white.

10+ pictures inside of Gwen Stefani showing off her bikini body on a yacht…