Was Justin rushed to the hospital?

Justin Bieber lives by the phrase "the show must go on" after all, he continued performing after breaking his foot mid-song during a London concert in 2009. But in January, Justin felt short of breath while filming scenes for his appearance on CSI and was rushed to the hospital. Fortunately, it was just an allergic reaction and he quickly recovered. Justin took to twitter to talk to his fans. "Thank you all for your prayers and support," he tweeted.