Catholic singer/songwriter Matt Maher will headline “Illuminate 2018: Light in the Darke,” Greenville’s 12th annual Christian music festival, which also features Danny Gokey, Tauren Wells, Stars Go Dim, Tom Golly, Samuel Day, and B List Boys on two stages.  Many events during the day, including a high ropes course, a rock climbing wall, a free coffee house stage, and more. Tickets range from $30 (general admission) to $55 (VIP – reserved seats, meet and greet with Maher, more).