48 & Looking Great! Birthday Boy Tim McGraw Defies Age With Eight-Pack, Sculpted Bod In 12 Photos

Country singer Tim McGraw showed off his sexy eight-pack abs as he worked out in a San Diego park on Wednesday, looking better than men half his age, as he turns 48 Friday.

Tim McGraw bares his tan, ripped body during an outing near San Diego's Hotel Del Coronado, wearing only grey shorts and sneakers.

The Country Strong star looked like an anatomy chart, as he planted his left foot into the grass.

The "Felt Good on My Lips" singer is clearly in no danger of hitting the wall as he sprawls out on the ground.

Faith Hill's hunky husband turns things upside down, using the wall for balance.

The "Indian Outlaw" singer later played a show on the beach after the grueling workout.

The "My Next Thirty Years" singer stretches with others; he told People two years ago that his physical conditioning plays a direct role in his ability to perform live.

McGraw told the magazine that "working out is a great way to go out on stage," and his "adrenaline is going" when he takes the stage.

McGraw's muscular arms are the result of many push-ups, as this shot can attest to.

The focused McGraw keeps upright while his workout buddy catches a breather.

McGraw previously told the NY Daily News that the key to staying fit is tricking your body with new routines and exercises.