George Jones has recorded the theme song for Squidbillies, an animated comedy series that returns Sunday night (Oct. 2) on Adult Swim. Jones recorded the song with Hargus "Pig" Robbins, who also played piano on Jones' first No. 1 hit, "White Lightning." Series creator Dave Willis describes himself as a lifelong fan of the legendary singer, saying he has been trying to persuade Jones to cut the song for five years. Billy Joe Shaver has sung the theme in the past. Willis and co-creator Jim Fortier describe Squidbillies, which includes adult themes, as "the surreal world of backwoods Appalachian squids." In related news, country singer Elizabeth Cook will make an appearance on the show as the character Tammi on Oct. 9.