With this deal, you get to see the John Mayer: Born and Raised Tour 2013 at Comcast Center. For $20, you get one G-Pass for general-admission access to the lawn on Saturday, August 17, at 7:30 p.m. (up to a $48 value, including all fees). Doors open at 6:30 p.m. Because the ticket is a G-Pass, our customers can use it to enter the venue directly; they will not need to redeem their voucher at will cal.

John Mayer

It’s been three years since fans basked in the presence of John Mayer. But the seven-time Grammy-winning singer, songwriter, and guitar guru hasn’t been on vacation. He’s been quietly evolving, exploring a rootsier side of the sonic spectrum, and hanging out with his inner Neil Young. His latest album, Born and Raised—which debuted at No. 1 in six countries—aims for the timeless sound of a matured man and his faithful acoustic guitar, reflecting and occasionally repenting somewhere on a country road. It makes for “some of the most convincing music of Mayer’s career,” according to Rolling Stone’s four-star review, full of “restrained and elegant” guitar work.

That guitar work has won Mayer as much acclaim as his soulful tenor and his knack for writing acoustic outpourings of romance in the vein of “Your Body Is a Wonderland.” It’s landed him on the cover of Rolling Stone’s annual Guitar Issue twice, and has slunk and danced through the sounds of co-performers as diverse as Eric Clapton, Herbie Hancock, and Jay-Z. On the Born and Raised tour, Mayer dusts off his signature smoothness and rolls out a set of greatest hits and new jams as rustically inviting as a bearskin welcome mat. For this tour, Mayer is donating one dollar from every ticket sold to the veterans’ health-research organization NCIRE.<p> ####Phillip Phillips

Phillip Phillips was crowned American Idol’s 11th-season champion, but his throaty voice and sweet-faced stage presence don’t exhaust the depths of his musical talent. Besides vocally connecting with the classics, Phillips is a folk-tinged songwriter in his own right and an accomplished guitarist to boot. In the months since his TV victory, the Georgia singer-songwriter’s career has already begun to eclipse his Idol success. Having completed a tour with Matchbox Twenty, Phillips now hits the road with Mayer to showcase his likeminded, heartfelt tracks from the hit album The World from the Side of the Moon.

Due to security restrictions, G-Passes must be printed out and presented in person at the event. They cannot be redeemed through the mobile app.