The 'Avengers: Endgame' cast sang a superhero version of Billy Joel;s'We Didn't Start The Fire' for the Tonight Show with Jimmy Fallon.
SPOILER ALERT: There are no spoilers! It's really a review of all the Marvel characters through all the past years and movies.
But there is a cool tribute to Stan Lee at the end.
Seems the whole world is waiting for this weekends premiere!