I didn't notice (mainly because I'm not familiar with this song) and maybe you didn't either if you were at the ballpark, but someone associated with the Cubs' in-game presentation did something they probably shouldn't have Sunday night:

Chapman closes out the inning & at the inning break the Cubs play "Smack My Bitch Up." You gotta know better. C'mon. — Sarah Spain (@SarahSpain) August 15, 2016

I think you can see why this was a really, really bad idea.

Via the front page at ESPN.com (as of 11 a.m. CT), here's an update on the story from ESPN Chicago's Jesse Rogers:

The Cubs say they unintentionally played the song 'Smack My Bitch Up' last night when Aroldis Chapman walked off the mound in the ninth inning. The Cubs will have a strong response to it this morning. It was "unfortunate and should not have happened," according to the team.

I'm glad that the Cubs are being proactive about this and will take appropriate action. It's not a song that should have been played in this situation, or indeed, in any situation at Wrigley Field.

UPDATE -- Here is a statement from Cubs President of Business Operations Crane Kenney:

We apologize for the irresponsible music selection during our game last night. The selection of this track showed a lack of judgment and sensitivity to an important issue. We have terminated our relationship with the employee responsible for making the selection and will be implementing stronger controls to review and approve music before public broadcast during our games.