Published on: June 13, 2013
Photography by: Splash News Online

INSIDE JUSTIN BIEBER’s never ending party of girls, booze and drugs as his off the hook party pal tells all -- from rehab, natch.

The man who arranged the wild parties at Justin Bieber‘s Calabasas mansion told RadarOnline about how the constant drug use in Justin’s inner circle landed him in rehab.

“I’m the main party guy in the group,” rapper King Kevi said in an interview from Passages Malibu, where he was finishing up a 30-day stint for abusing codeine, also known as “sizzurp” or “drank.”

“I was the ringleader for getting it for everybody, because I had the hookup.”

He explained, “Everyone on Twitter says that Justin has posted pictures of sizzurp and then deleted them, but I have never seen him do it. I’ve only ever seen him smoke weed..”

But the narcotic beverage was popular with the MUCH of his posse until recently, Kevi claims.

“When Lil Wayne went to the hospital for seizures, that s**t got us down, like, that was someone I look up to,” he said. “After that, everyone else stopped doing that s**t. I just kept going. I was doing it basically every day.”

Kevi’s friends and family staged an intervention and shipped him off to Passages, far from the temptations of hanging with The Beeb.

 “What I’ve been doing ain’t really good for me,” Kevi admitted. “When I’m doing that s**t, I feel good, but I’ve come to learn that I don’t need to do it like everyday.”