Gwen Stefani is used to turning heads with her edgy appearance and youthful good looks, but she got fans talking for a very different reason recently. The No Doubt singer shared a selfie on Instagram along with a series of videos from her latest escapades and while some of her social media followers adored what she was doing, others weren't so happy. MORE: Gavin Rossdale leaves fans concerned with head-turning photo Gwen was visiting San Diego Zoo and documented her time there for everyone to