When Max Holloway caught his son singing the Korean Zombie’s walkout song 🧟‍♂️ #shorts #ESPN ✔ For more UFC, sign up for ESPN+ http://espnplus.com/ufc/youtube ✔ Get the ESPN App: http://www.espn.com/espn/apps/espn ✔ Subscribe to ESPN on YouTube: http://es.pn/SUBSCRIBEtoYOUTUBE ✔ Subscribe to…