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Katy Perry wows her London fans, Daniel Radcliffe spotted on the streets of New York! We've got all this fun footage and more in this edition of Celebrity GPS!
Meanwhile, Daniel Radcliffe dashes past the paps in the Big Apple while Sandra Bullock is seen walking around the set of her new movie with baby Louis.
Check out the video for more, including Lindsay Lohan and her siblings leaving the Knicks game in NYC.