SELENA GOMEZ Tryin' to Stay COOL



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Selena Gomez just turned 21…and she’s already stumbling in NYC.

Don't worry ... this fall doesn't appear to be alcohol-related -- just seems like Selena lost her footing on the way out of her car.  Luckily, a bodyguard was there doing the job he was hired to do -- protect her body -- and kept her from face-planting in the gutter.