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8 March 2011, 08:39
Katy Perry's been doing a number of covers on her current tour and this week it was the turn of Lady Gaga to get the Katy treatment.
The 'California Gurls' star treated fans in Paris to a stripped down version of Gaga's latest single 'Born This Way'
In Portugal Katy Perry covered Rihanna's "Only Girl (In the world)", and Willow Smith's "Whip My Hair".
Here's your chance to see Katy's version of 'Born This Way'