Complex sentence: The band was formed in 2006 by Drew Holcomb (lead vocals, guitar, harmonica), and it includes his wife Ellie Holcomb (vocals, guitars), Nathan Dugger (guitar, keys), and Rich Brinsfield (bass).
Split into simpler sentences: The band was formed in 2006 by Drew Holcomb (lead vocals, guitar, harmonica). The other band members are his wife Ellie Holcomb (vocals, guitars), Nathan Dugger (guitar, keys), and Rich Brinsfield (bass).