Alec Baldwin Raps With Chance The Rapper, Bill Murray Chills With Rick Ross

It's always fun to see celebrity worlds collide. Take Chance The Rapper and Alec Baldwin, who were apparently hanging out over the weekend and decided to record a video of Chance beatboxing while Baldwin raps over him. Chance posted the team-up on Instagram yesterday, and the viral get together is meant to raise awareness for the Young Chicago Authors non-profit. As Pitchfork points out, Baldwin takes his lyrics from Carl Sandburg's poem "Chicago." Here's the video:

This is me beatboxing while Alec Baldwin raps, he is for the people. Him, Alfred Woodard and Ali from Tribe came thru the city to help raise money for YCA, the organization that built and developed myself and @Malcolmlondon into the leaders we have become. Give it up for them. Beautiful leaders we can all learn from #Chicago #LongLiveTheYoung #YCA

A video posted by Chance The Rapper (@chancetherapper) on Mar 1, 2015 at 6:13pm PST

[Photo by Christopher Polk/Getty Images.]