Sean Merriman, BTN.com web editor, May 26, 2015

Several months back, a photo went viral of of Michigan football coach Jim Harbaugh sporting a Michigan State Izzone shirt.

Now, a new photo has surfaced of the Wolverines? coach wearing some more Michigan State apparel. This time, it comes in the form of a Spartan hat.

This photo was likely taken in the mid-'90s, when Harbaugh's brother in law, current Indiana basketball coach Tom Crean, served as an assistant coach for the Spartans.

My guess is that Harbaugh has since gotten rid of his Spartan gear.

Either way, this is a fun photo to look back at that both Michigan and Michigan State fans can have a good laugh at.