Could Gavin Rossdale, 54, have a new love interest? That’s the question on many people’s minds after the rocker was seen strolling along a Malibu beach with a lovely mystery lady that looks just like Heidi Klum! He wore a white T-shirt and blue, red, and yellow shorts during the eye-catching outing, which took place on Sept. 27, while the blonde beauty wore a white cropped T-shirt and dark blue Nike shorts.