Before Justin Bieber was arrested for DUI on Thursday morning, he was photographed with this hottie.

The pop star posted a photo of the gorgeous model in the driver's seat of a yellow Lamborghini on Instagram, before deleting the pic. He was seen in the car with her in another shot from friend Khalil's Instagram page as well -- and was photographed by his side at SET nightclub.

So, who is she?

The stunner has been identified as Chantel Jeffires, a model signed with Wilhelmina Models in Miami.

According to her modeling profile, she's 5'6" with a 32" C bust. With green eyes, dark blonde hair and a 23" waist, she's very proud of her looks -- and posts a ton on revealing Instagram photos on a regular basis.

It's unclear if she was still with Justin at the time of his arrest.

Check out some of her hottest pics in the gallery above.

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