From Prison to Global Superstar: Kartel's Incredible Two-Year Run. Two years ago, one of the most controversial artists in music walked out of prison. Many people wondered if Vybz Kartel could ever reclaim his throne. Fast forward two years later...sold out arenas, Grammy recognition, international collaborations and once again becoming the biggest name in dancehall. Today we're breaking down everything the Worl' Boss has achieved since becoming a free man.