![Mark Rivera and Gavin DeGraw at Citizens Bank Park, August 13, 2015](https://cdn-p.smehost.net/sites/4788b7ad6b5448c1b90d9322361f98f3/wp-content/uploads/2016/02/K51A2360.jpg)
Mark Rivera and Gavin DeGraw backstage at Citizens Bank Park in Philadelphia, PA, on August 13, 2015.
Photo Credit: Jeff Schock
Mark Rivera and Gavin DeGraw backstage at Citizens Bank Park in Philadelphia, PA, on August 13, 2015.
Photo Credit: Jeff Schock