The Chicago Cubs welcomed a FULL-CAPACITY crowd to Wrigley Field Friday for the first time since the COVID-19 pandemic started ... and none other than Bill Murray was present to give a majestic rendition of "Take Me Out to the Ball Game!!!"
Of course, it's tradition for the Cubbies to welcome their biggest supporters to help serenade the crowd during the 7th-inning stretch ... so the team brought out its most diehard fan for the first game back with a full stadium.
"This is what it feels like to be 100%," Murray yelled to the crowd before the big moment. "And, we're gonna be louder from right now until the last out in the top of the 9th inning, understood?"
Remember -- the Cubs haven't hosted a full stadium since 2019 ... so the place was ROCKING during their game against hated rival St. Louis.
"Let's scare the hell outta these Cardinals, let's scare them!!" Murray added.