Underage 'Hannah Montana' star busted for DUI

Hannah Montana's sidekick now has his very own rap sheet.

Mitchel Musso, aka Oliver Oken on the Miley Cyrus-fronted series, was arrested for drunken driving yesterday in the L.A. suburb of Burbank.

Did we mention that Musso is only 20? So what kind of trouble is he in?

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It's pretty serious.

The actor was popped early Sunday morning, according to Burbank Police Sgt. Sean Kelley confirms to E! News, at the scene of an unrelated traffic accident.

"An officer was directing traffic and Musso failed to slow down when coming to the intersection," says Kelley. "He didn't obey instructions and was pulled over. A DUI investigation was held and he was given a field sobriety test

"Musso is 20 years old so any alcohol in his system is illegal. He was well over the 0.08 limit."

Musso was arrested at 3:43 a.m., taken to jail and bail was set at $5,000.

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Musso spent a few hours drying out and was ultimately allowed freed without having to pay the bail because, Kelley says, "he had no warrants or anything like that."

Musso, who released an album in 2009, is also known for voicing Jeremy Johnson on the Disney Channel series "Phineas and Ferb" and is the host of Disney Channel's reality series "PrankStars."

No immediate comment from reps for Musso or Disney.

There is one bright spot, however: Burbank police aren't releasing his mug shot.

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