As kids, the Followill brothers -- Caleb, Nathan and Jared -- traveled with their father, a Pentecostal preacher, as he toured the country, leading tent revivals. But years later, Dad ditched his calling (and his wife), and the boys, along with cousin Matthew, embraced the church of rock 'n' roll. While the Kings have been on hiatus for several months, band members have suggested new music is on the way.
In their favor: They got used to the rigors of touring long before they were a band.
Biggest threat: One of them finally succeeds in stabbing another, or one of them finds religion.