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The 34-year-old arrived at Battersea Power Station wearing the creation which was designed by Cute Circuit, specialists in interactive fashion.
Nicole, who left her hair and make-up simple so that her dress could do the talking, later performed at the launch event.
What do you think? Will we all soon be wearing our tweets on our sleeves? Tweet us your thoughts @MSNHer.
And, Nicole wasn't the only one lighting up the red carpet, let's see who else was there...
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