Jason Derulo Shows How 'Quick And Easy' H1N1 Vaccination Can Be

'Whatcha Say' singer stops into Chicago hospital to protect himself against swine flu.By Eric Ditzian, with reporting by Matt Harper Jason Derulo Photo: MTV News Jason Derülo had a stellar 2009 — a #1 Billboard Hot 100 single, an opening spot on Lady Gaga's Monster Ball Tour — and he knows that if he wants to step it up in 2010, he's gonna have to stay healthy. That's why when the "Whatcha Say" singer flew into Chicago after a show in St. Louis, he stopped by Northwestern Memori...

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