Why do the Washington Nationals play baby shark?

Baby Shark' is taking over the World Series (video)

Nationals: Inside 'Baby Shark' craze taking over World Series team

World Series Champion Gerardo Parra Leads World-Famous Budweiser Clydesdales Through Navy Yard on Opening Day, by Nationals Communications

Gerardo Parra Reveals Nats' 'Baby Shark' Was Accidental

Nationals Unveil Championship Ring Design, Complete With Baby Shark – NBC4 Washington

Should a die-hard Nationals fan pay whatever it takes to go to the World Series? - The Washington Post

Gerardo Parra leaves Nationals to play in Japan

How 'Baby Shark' made the Washington Nationals your toddler's favorite baseball team

IMAGE DISTRIBUTED FOR THE PINKFONG COMPANY - Baby Shark cheers on the Washington Nationals with fans of all ages ahead of Baby Shark™ Day, while taking photos with fans at the Baby

The Nationals' obsession with 'Baby Shark,' explained: Why Washington's rallying cry is a children's song

Washington Nationals' obsession with Baby Shark drives MLB store sales during World Series