Last night, Childish Gambino came out as part of 21 Savage's Lollapalooza set. Donald Glover wore an arm sling and what looked like three neck pillows as he and 21 performed their joint track, “Monster.”

The song features on 21's sophomore album, I Am > I Was. Watch the them perform “Monster” on an impressive pyramid staircase in Chicago's Grant Park in the video above.

If you couldn't make it to Lollapalooza 2o19 don't worry. You can catch Lil Wayne, Tenacious D, Ariana Grande and more as part of their livestream, below.


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