Third Day Farewell 2018 Tour Concert Tee. Excellent, barely worn condition. See pics for measurements Third Day was a Christian rock band formed in Marietta, Georgia in 1991. The band was founded by lead singer Mac Powell, guitarist Mark Lee (both of whom were the only constant members) and Billy Wilkins.[Drummer David Carr was the last band member to quit, prior to the band’s farewell tour in May and June 2018.