showbiz gossip straight to your inbox with the Daily Star's FREE newsletterBritney Spears has posted a sultry nude snap sitting on the edge of her bathtub to her 31.2million followers.The pop star, 39, was captured from behind and the picture cut off before revealing her bare behind.She captioned her post with only three pointe shoe emojis.Fans commented: "That back carried the entire pop music industry."Another said: "Britney's back," perhaps a play on words or on the fact that she seems to be fighting for her freedom.However some were confused, asking: "Where are the tattoos?" as Britney has a fairy tattoo on her back and some even speculated it wasn't her back or it was photoshopped.And countless others simply wrote: "Free.
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