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The former Ginger Spice has said that Lady Gaga admitted she was influenced by Halliwell's own unique style.
Speaking to The Daily Mail the singer said: 'I went to see Lady Gaga in concert, and we saw each other backstage and it was really nice because there wasn't anybody else around, and she said 'You know, Geri, you really inspired me, I really tuned into what you stood for''.
Lady Gaga recently Tweeted the lyrics to the title track from her forthcoming album 'Born This Way'.