Xzibit meltdown, 'Pimp My Ride' star throws chair at Australian rapper Mastacraft in epic cab ride rage [VIDEO]

Apparently, Xzibit was NOT impressed with aspiring rapper Mastacraft's VIP standards during a recent performance in Australia. So, he reacted by tossing a metal chair right at the promoter's head!

According to TMZ, up-and-coming Aussie emcee Mastacraft went "M.I.A" before Xzibit's concert in Adelaide, Australia on Wednesday (April 23). Mastacraft was in-charge of handling the small stuff, like transportation to-and-from the venue, etc. But as the infamous gossip webloid reports, the "Pimp My Ride" star's transportation from the airport "wasn't up to his standards." After finally arriving at the hotel, he was "forced" to hail a cab to his own show. When Xzibit tried to figure out what was going on, Mastacraft allegedly disappeared.

So when Xzibit did eventually arrive to the venue, he basically freaked-out backstage. He ran into Mastacraft, and chucked a steel chair right in his face:

There's a heated exchange of words before the rapper picks up the chair and throws it - hard. The fight continues, and Xzibit almost rips off his shirt. But things eventually cool-down before getting violent.

Apparently, the show went pretty well.

But it looks like Mastacraft won't be booking anymore of Xzibit's performances anytime soon.