Katy Perry live at the Hammersmith Apollo!

Katy Perry

Katy Perry and her sweet shop-inspired outfits performs on the opening night of her 'California Dreams' UK tour at Hammersmith Apollo on March 17, 2011 in London, England. Here are four videos of her more popular songs:



Hot and Cold!

Teenage Dream!




















I kissed a girl!California Gurls!
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