Actor Bill Murray has been a staple at Chicago Cubs' games all postseason long. (You want evidence?) Predictably, Murray will be at Wrigley Field on Friday night -- the first Cubs-hosted World Series game in his lifetime -- and he'll be doing more than watching the game.

As it turns out, Murray will perform "Take Me Out to the Ballgame" during the seventh-inning stretch, per the Cubs:

7th INNING STRETCH: Chicago Cubs super-fan and comedic legend Bill Murray will sing "Take Me Out To The Ballgame" from the Wrigley Field press box.

Murray is, of course, no stranger to the task. Here's a look at a few of his performances over the years:

Murray has presumably been saving his best effort for a high-leverage situation. Game 3, then, would qualify.