New video shows Justin Bieber at a Miami police station taking a jailhouse sobriety test shortly after he was arrested on suspicion of DUI. The 19-year-old pop star appears to be walking a straight line. He would later test positive for marijuana and Xanax, but was not found to be legally intoxicated.

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Another clip shows him doing push-ups while in a cell at the facility last month.

The release of the video comes as a shirtless Bieber appears on the cover of Rolling Stone this month next to the headline "Bad Boy."

Dr. Keith Ablow, member of the Fox News Medical A-Team, talked to Martha MacCallum this morning about the troubles facing the "Biebs."

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The doctor is concerned about the role of Bieber's parents, pointing out that his "loving dad" reportedly blocked off the streets so Bieber could drag race with friends before the arrest, and that Bieber obtained Xanax without a prescription from his "loving mom."

He went on to discuss whether Bieber is going through the same issues that have plagued other child stars in the past.

Watch the video and Ablow's analysis above.

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