Just saw this on FB, and I was a little surprised that I had never heard this story…
In May of 1969, Peter Cetera and three other members of the rock band Chicago (then known as The Chicago Transit Authority) were at Dodger Stadium for a game between the Dodgers and the Cubs. The Cubs won the ballgame 7-0, and at some point four disgruntled Dodgers fans - U.S. Marines no less - decided to take out their angst on Cetera, who was unabashedly celebrating. They broke Cetera's jaw in three places sending him to intensive care. Fast forward to later that summer, with Cetera's jaw still wired shut, the band was slated to record the song "25 or 6 to 4." It couldn't wait, and only Cetera could pull off the vocal. He recorded "25 or 6 to 4" - one of the great songs on the era - through gritted teeth. You may have heard this song hundreds of times and never known. But if you listen closely you can hear the words getting a little slurry at times. Surprisingly little, considering. But noticeable, given that Cetera's vocals are normally very clean. Anyway, if you like that song just how it is, you can thank four crabby Dodgers fans and Peter Cetera for his unflinching support for the Cubbies.