As the Washington Nationals and Houston Astros get ready to settle the score with a World Series winner crowned tonight at Minute Maid Park in Houston, Washington is still feeling the effects of its visit from a shark. Baby Shark.

Last Friday, prior to game 3, the pink fox known as Pinkfong and the official Baby Shark mascot paid a visit to Washington, D.C. to cheer on the Nationals while visiting landmarks, including the Washington Monument and Capitol Hill. During their trip, Pink Fong and Baby Shark handed out officially-licensed WowWee toys to kids of all ages.

This summer, Baby Shark became the unofficial mascot of the Nationals after Gerardo Parra switched his walk-up music to the viral song in honor of his daughter’s love for the unforgettable earworm. Following the switch, the superstitious Parra broke out of a hitting slump and the song stuck. Major League Baseball tells CNBC that it has sold more than $100,000 worth of unofficial Baby Shark products through the MLB Shop since the Nationals adopted the ocean-dwelling mascot.

WowWee’s full range of officially-licensed Baby Shark toys is available in stores now.

Top photo: APImages — Rodney Choice for Pinkfong Baby Shark & WowWee