The rock star life is nothing new to Shooter Jennings. Born to outlaw country legends Wayland Jennings and Jessi Colter, his formative years were spent in a crib on his parents' tour bus. Jennings picked up the drums at 5, and occasionally joined his father's band on guitar as a teenager. Shooter soon found his own musical niche — one that combined his thick country roots with his love for rock 'n' roll — and by his mid-20s had recorded his debut, “Put the ‘O’ Back in Country.” Since then, he's released three more records with his band, the .357's, and doesn't seem to mind the inevitable comparisons to his father: Shooter even played him in the Johnny Cash biopic “Walk the Line.” Jennings comes to Toad's Place Friday, Aug. 22, at 8 p.m. Horsehead and Boss Kean's Ditch open. $15-$18. 648-TOAD.