Will 'Baby Shark, doo doo doo doo do' make its World Series debut at Nats Park?

FILE - In this Sept. 29, 2019, file photo, a fan wears a shark hat as Washington Nationals' Gerardo Parra comes up to bat in the eighth inning of a baseball game against the Cleveland Indians at Nationals Park in Washington. The “Baby Shark, doo doo doo doo doo doo” earworm might just be coming to a World Series near you, if Washington Nationals backup outfielder Gerardo Parra heads to the plate during one of his team’s home games against the Astros. (AP Photo/Andrew Harnik, File)