PHOTOS: Gwen Stefani Looks Hot-Hot-Hot

Winter? What Winter? Seems like Gwen Stefani doesn't seem to know the meaning of the word. The rock star — looking fine for any age, let alone her 40 years! — proudly displayed her fit physique in this bright-red bikini while on vacation with hubby Gavin Rossdale and their two young boys Kingston and Zuma in the French West Indies on Monday. The family spent the day playing in the sand and splashing in the water in St. Barts.