Listen To A Previously Unreleased Chance The Rapper/Lil B Collaboration

Last year, Chance The Rapper and Lil B teamed up for a spontaneous mixtape. "Based God was there first," one of the session's engineers told The FADER. "He was cycling through his large folder of beats on his computer. He’d bounce between listening to beats and listening to Max B for a little bit. Chance pulled up, they dapped each other up immediately and just sat down at the console and started freestyling to some music. One thing just led to another very quickly, and they were like, 'let's make a mixtape.'"

Another song reportedly laid down during that session surfaced today via the rapper K E I T H (Keith Jenkins). On SoundCloud, the MC wrote "(UNRELEASED) rare lost track only here enjoy." "Beautiful Chicago" finds Lil B and Chance The Rapper heaping praise on the city. "I feel like I'm a bear," Lil B raps. "But I'm a Leo." He also shouts out Jenkins.

Listen below, and revisit the untold story of the Based Freestyle tape. A representative for Chance the Rapper was not immediately available for comment.