The country star hit the stage with Bill Murray himself during the two-day event. Young and the comedian performed a cover of Marty Robbins' "El Paso."
"I can confirm... Bill Murray may be one of the coolest and nicest people I've ever met," Young shared to Twitter.
According to the Murray Bros. Caddyshack website, each spring they partner with various charities in order "to better the lives in communities across the country."
Participants throughout the weekend attend parties, enjoy live entertainment, eat great food, and of course play golf. The funds are then put towards medical services, educational programs, lifesaving equipment, and more.