Complex sentence: Trick Pony was a Grammy Award-nominated American country music group formed in 1996 by Keith Burns (lead guitar, vocals), Ira Dean (bass guitar, upright bass, vocals), and Heidi Newfield (lead vocals, harmonica, acoustic guitar).
Split into simpler sentences: Trick Pony was a Grammy Award-nominated American country music group. It was formed in 1996 by Keith Burns (lead guitar, vocals), Ira Dean (bass guitar, upright bass, vocals), and Heidi Newfield (lead vocals, harmonica, acoustic guitar).