Katy is no stranger to the Internet, but with her music video for "Last Friday Night (T.G.I.F.)," she really upped her Web-savviness. Not only did she set up fake Facebook and Twitter accounts for her geeky music video alter ego Kathy Beth Terry, but she also filmed hilarious videos as Kathy for Funny or Die. Also this month, Katy launched her free mobile roadie app, which turns your phone into KP central.
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