Topless photographs of singer Britney Spears have been circulating on the web. Several of the risqué pictures show Spears posing nude wearing a fedora and sunglasses, her nipples only covered by red flowers. The 25-year-old singer, who is currently on a mini comeback tour of the US, reportedly posed for the pictures while visiting a botanic garden with friends. Earlier this week, Brit performed for 14 minutes at House of Blues in San Diego, and has now travelled to LA for her next show. The mum-of-two has not performed live since June 2004, when she injured her knee. | 
