We've seen so many of these cases. Child stars. Young singers with so much promise, so much wealth, suddenly suffering staggering falls. On this Thursday, the mug shot going viral. Justin Bieber's 49... See More
We've seen so many of these cases. Child stars. Young singers with so much promise, so much wealth, suddenly suffering staggering falls. On this Thursday, the mug shot going viral. Justin Bieber's 49 million followers on Twitter. Tonight, the early pictures of a golden boy, even performing for the president. ABC's Matt Gutman asking what so many are. What happened? Reporter: Strutting out of jail it was Justin beiber clambering atop this SUV saluting the crowd after his arrest overnight. Earlier in court a very different beiber dressed in prison Orange, biting his lip as he faced charges of DUI and resisting arrest. The pop star is accused of drag racing in the wee hours of the morning in a rented yellow lamborghini. The posted speed limit on this street is 30 miles per hour. Bieber and his friend were allegedly drag racing down here up to 60 miles per hour. Police say the 19-year-old admitted to drinking, smoking pot and taking prescription meds. That grinning mug shot, so different from the doe-eyed 13-year-old. Who crooned for the Obamas at Christmas 2009. He became a pop phenom. But then, Bieber morphed into the new bad boy of pop. Experts wondering if he's heading down a well-worn path of other stars who became too famous too soon. There's a lot of people around, willing to empower you. There's not a lot of people looking to tell you know. Reporter: Child star Britney spears' flamed out, but has bounced back. Others like Michael Jackson, whose postcourt antics atop another SUV, Bieber seemed to mirror today, have ended in tragedy. The question, tonight, which road will Justin Bieber travel? Matt Gutman, ABC news, Miami.
This transcript has been automatically generated and may not be 100% accurate.