Billy Joel led Citi Field in the national anthem prior to the game Friday night between the Mets and the Kansas City Royals. The Mets have a long history with Joel.
This season, they played Joel's "Piano Man" as a sing-along in the middle of the 8th inning break and sometimes played "New York State of Mind" after a Citi Field win.
Last week, Joel sang "Meet the Mets" and gave score updates from the NLCS's Game 4 during a concert at Madison Square Garden.
Joel also sang the anthem during Game 1 of the 2000 World Series between the Mets and Yankees at Yankee Stadium.