The Wild Kidz strike again. A day after Justin Bieber upset his legion of detractors (old folks) — a video of the pop star urinating in a janitor’s mop bucket was uncovered by TMZ — a member of his rowdy entourage is now under arrest for a DUI.

TMZ is reporting that longtime Bieber BFF Lil Twist was detained by police for driving under the influence. According to a law enforcement source that spoke to the celebrity news site, Twist (born Christopher Lynn Moore) was pulled over for speeding in the affluent Calabasas, CA, neighborhood where Bieber resides. Police say the 20-year-old Young Money rapper was stopped around 3:30 a.m. while en route to Bieb’s mansion.

Twist was reportedly under the influence of an unspecified substance. He was allegedly driving Bieber’s infamous chromed-out Fisker Karma. This is the second time Twist has had a run-in with the law while behind the wheel of a car owned by his uber-famous friend. In March he was pulled over for speeding in the teen star’s white Ferrari.

Stay tuned for more on this developing story.

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(Photo: John Ricard / BET)