Gwen Stefani took a walk on the wild side when she shared a sultry image of herself lounging on a couch in a cheetah print outfit - which blew fans away. The Voice star, 51, was branded "hottest woman ever" by some fans after she posted the photo on Instagram. MORE: Gwen Stefani receives massive gift from Blake SheltonIn the snapshot, Gwen was elegantly draped on the furniture and had teamed her tiny bra and leggings with a pair of fluffy slippers. WATCH: Gwen Stefani and Blake Shelton's