Shed A Light David Guetta & Robin Schulz Download 'Shed A Light' on iTunes
Katy Perry has covered Lady Gaga's new single.
Katy did an acoustic version of 'Born This Way' for her audience in Paris.
She has previously used the 'unplugged' segment on her 'California Dreams' tour to cover Jay-Z, Willow Smith and friend Rihanna.
To see a clip of the performance, click below.