The beloved game show host appeared in the Cubs’ broadcast booth at Wrigley Field to lead the crowd in the iconic sing-along.

The 'Jeopardy!' host led Wrigley Field in 'Take Me Out to the Ball Game' wearing a custom 'Jennings 74' jersey.

Jeopardy! only has about a month left of episodes before Season 41 comes to an end. That means Ken Jennings is ending his ...