Roots of Charlie Sexton

Roger Kynard "Roky" Erickson was an American musician and singer-songwriter. Called an "outsider genius", he was a founding member and leader of the 13th Floor Elevators, as well as a pioneer of psychedelic rock music during the mid to late 1960s. Additionally, he founded the band Roky Erickson and the Aliens in the late 1970s.

Okkervil River is an American rock band led by singer-songwriter Will Sheff. Formed in Austin, Texas, in 1998, the band takes its name from a short story by Russian author Tatyana Tolstaya set on the river Okkervil in Saint Petersburg. They began as a trio made up of Sheff and friends he had met in his native state of New Hampshire but, over time, have gone through many lineups.