I just saw Billy Corgan sing "Take Me Out to the Ballgame" during the seventh inning stretch of the Cubs game.
He concluded it with an awkward "Let's get some runs!"
My first amplitheatre rock show was the Smashing Pumpkins in 8th grade. They opened with "Tonight, Tonight" and closed with... you guessed it... "Take Me Out to the Ballgame."
It was nice hearing his rendition again.