Tha Carter IV is the ninth studio album by Lil Wayne. It features Cory Gunz, Drake, Rick Ross, John Legend, Busta Rhymes, Jadakiss, T-Pain, Bun B, Nas, Shyne, Tech N9ne and Bruno Mars who sing over beats made by hottest producers such as Willy Will, Bangladesh, T-Minus, StreetRunner, Boi-1da or Cool & Dre.