Selena Gomez hospitalized after 'Tonight Show' appearance

Selena Gomez looked just fine on Tuesday night with her sweetie Justin Bieber (and Justin's bodyguard Kenny Hamilton) at Tuesday's NBA Finals game between the Mavericks and the Heat in Dallas.

And she looked as cute as ever as she chatted with Jay Leno on the Tonight Show last night.

She didn't even flinch when Jay said, "Has your mom met Justin Bieber?"

Gomez, 18, said yes, adding, "He passed the test."

But now, TMZ reports that the singer was rushed to the hospital after the appearance, with symptoms that included nausea and a headache.

Her rep confirms to Lifeline Life that after the show Selena "wasn't feeling well and was taken to the hospital. She is currently undergoing routine tests."

Update from her rep: "Unfortunately due to these unforeseen circumstances, today's scheduled appearance in Santa Monica has been canceled."

See photos of: Justin Bieber, Selena Gomez

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