LOS ANGELES, CA - APRIL 22: (L-R) Chris Evans and Robert Downey Jr. speak onstage during the Los Angeles World Premiere of Marvel Studios' "Avengers: Endgame" at the Los Angeles Convention Center on April 23, 2019 in Los Angeles, California. (Photo by Jesse Grant/Getty Images for Disney)

Need a quick refresher on the entirety of the Marvel Cinematic Universe? The Tonight Show Starring Jimmy Fallon and the cast of Avengers: Endgame have you covered.

Fallon and the Avengers: Endgame cast sang a remake of Billy Joel‘s “We Didn’t Start the Fire” but instead of recounting decades-worth of history, they ran down the 20 previous films that currently make up the MCU. (WARNING:  Be prepared to have this song stuck in your head for a significant part of your day.) The clip then concludes in a touching tribute to the late Stan Lee.

Avengers: Endgame opens in theaters nationwide April 26.

Erica Banas is a rock/classic rock news blogger who's well-versed in etiquette and extraordinarily nice. #TransRightsAreHumanRights