The song playing during the fox dance is "The Fox (What Does The Fox Say?)" by Ylvis, released in 2013, which was a worldwide hit at the time with over 1 billion views on YouTube. It was parodied on the popular American TV show "Saturday Night Live," which is a testament to its popularity at the time.

Ylvis is a Norwegian duo of brother comedians, Vegard and Bird. They are also known as the hosts of the popular Norwegian variety TV show "I kveld med YLVIS," which became their big breakthrough with this song.

The "Kitsune Dance" has transcended time and space to captivate Japanese baseball fans. Wouldn't you like to dance along with the Hokkaido Nippon-Ham Fighters at their home games? The official choreography video is now available for you to watch! The players look like they are having a lot of fun dancing together.