After working with Kanye West on “All Day,” one of the toughest songs of the year, Allan Kingdom might have been tempted to capitalize on his new spotlight by dumping a ton of music on the internet as quickly as possible. Instead, he’s released tunes in carefully controlled doses: a fresh single, “Take It Easy,” and now “Mandela,” the latest track from the DJBooth Freestyle series. Here Kingdom works with a twisty, fluttering beat from Charlie Heat and Critical. “You just ramble on the page, then you ramble on the stage,” he raps. “Ain’t you tired of being lame?” Listen below.