Third Day at Petersen Events Center

Third Day is a Christian rock band formed in Marietta, Georgia in 1991. The band was founded by lead singer Mac Powell, guitarist Mark Lee and Billy Wilkins. The band's name is a reference to the biblical accounts of the resurrection of Jesus on the third day following His crucifixion. The band was inducted into the Georgia Music Hall of Fame on September 19, 2009. They have sold over 7 million albums in the United States and had 28 number one Christian album chart radio hits. Their fans are known as "Gomers" after a song on their second album about Gomer. They dissolved in 2018 following a farewell tour and reunited in 2025 for a 30th anniversary tour in 2026.

Zachary Stephen Williams is an American Christian rock singer-songwriter from Bono, Arkansas. From 2007 through 2012 he was lead vocalist and played acoustic guitar and harmonica for Zach Williams & The Reformation. He was also the lead singer of the Christian group Brothers of Grace, renamed as Zach Williams and the Brothers of Grace. In 2016, he went on to a solo career.