John Mayer is not exactly short on backline options but when he answered a last-minute call to support Ed Sheeran at his Gillette Stadium show in Foxborough, Massachusetts, the gourmand of electric guitar tone had to improvise and reach for the digital amp modeller, with reports suggesting that he used a Fractal FM9 for a solo set that was put together in a hurry.
Khalid had originally been scheduled to support Sheeran but pulled out after being involved in a car crash. Mayer had little time to prepare. Also, given that he is on tour with Dead & Company, and had a set the next night in Boulder, Colorado, the chances are his live rig was elsewhere.
