For country star Zach Bryan and the University of Michigan, there’s a magic number looming: 110,905. When Bryan performs at Michigan Stadium on Sept. 27, that's the attendance figure he’ll need to exceed to break the record for the biggest ticketed concert by a single act in U.

In a first for Michigan Stadium, Ann Arbor's Big House will transform into a concert venue when it hosts country star Zach Bryan and special guest John Mayer on Sept. 27, promoters announced Wednesday.