Justin went to the hospital after suffering an allergic reaction, the teen singer's rep told Access, adding, "He is fine. All is well."
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According to Life & Style magazine, which first reported the news, the Biebs was taken to Providence St. Joseph's Hospital in Burbank, Calif., on Wednesday.
"He was having trouble breathing due to an allergic reaction," a source close to the singer claimed to the mag. "His doctor met him there. He stayed at the hospital about 30 minutes and was discharged."
A rep for CBS confirmed to Access Hollywood that Justin was back on set later the following day.
Justin Tweeted on Thursday about being back on the "CSI" set, but did not mention his hospital visit.
"Ok last day on the set as a #bada**. Gonna get deadly today," he Tweeted.
Earlier this week, Justin Tweeted a photo of himself with a large (fake) bruise on his face on the set.
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