Diddy has been working hard to rebuild Bad Boy, and now he’s released a mixtape showing what he’s been up to. It’s called “The Preview” and features Diddy’s top 3 artists Machine Gun Kelly, Cassie, and Red Cafe. At the end of the mixtape, Diddy announced that “King of Hearts” will be the first single off Cassie’s sophomore album, due in 2012. Listen and download The Preview.
