Justin Bieber has officially re-defined the meaning of the "Mile 'HIGH' Club." 

According to TMZ, Justin Bieber's pilot has said that Justin and a group of his boys got so high in their SUV on the way to the airport that when the doors opened smoke billowed out, adding, "I almost had to put on an oxygen mask."

"It was like 'Cheech and Chong Up In Smoke," said the pilot. 

Don't worry, Biebs didn't light up during the flight but was SUPER HIGH. 

So high that when the pilot asked for him to signed a credit card authorization he responded with "huh, what? Who am I signing this for?"