Soft-rock crooner and Berklee dropout John Mayer mixed it up with hits ("Bigger Than My Body") and blues tunes ("Crossroads") at his two-hour concert at the Comcast Center in Mansfield on July 12.

At left, Mayer worked the stage with his signature performance face. Did you witness his lyrical grimace firsthand?

Read the Globe's review: John Mayer gets the balance right (July 14)