Tom Hanks recreated his “shimmy shimmy cocoa pop” rap from Big, the 1988 comedy in which he played a child whose wish to be “big” turns him into an adult overnight. At one point, his character has to convince best friend Billy Kopecki of his identity by busting a rhyme only they know.
Promoting his latest starring role in Inferno, Hanks hooked up with YouTube stars Wong Fu Productions, who flew to Florence, Italy, to meet the actor (and director Ron Howard), where they asked him if he remembered the Big verses.
“I’m gonna try something a little crazy,” explains half of the team, Philip Wang, in a six-minute YouTube clip about their meeting with Hanks. “There’s this rap from the movie Big that he did in the ‘80s…he does with his best friend. And for some reason I memorized it back then.” His dream? To perform the rap with Hanks.
Hanks explained that he borrowed the rap from a song one of his children sang at summer camp. Watch the video below (the rap happens at 3:39):
A version of this article originally appeared on Billboard.com.