Wisconsin State Fair officials announced four more Potawatomi Bingo Casino Main Stage headlining acts for this year's Wisconsin State Fair today.

Classic rock band Styx will perform Tuesday, Aug. 7 at 7:30 p.m.; Victoria Justice, pop singer and star of hit Nickelodeon series "Victorious," will make the fair a stop on her first live tour Thursday, Aug. 9 at 7 p.m.; the Last Summer On Earth tour brings the Barenaked Ladies, Blues Traveler, Big Head Todd & The Monsters and Cracker to the fair Friday, Aug. 10 at 7 p.m.; and The Fearless Flores Thrill Show will offer two free performances Sunday, Aug. 12.

The shows join already-announced acts Jeff Dunham Aug. 2, Billy Currington with opener David Nail Aug. 3, the Happy Together Tour Aug. 5, Chris Tomlin with opener Chad James Aug. 8 and Tesla, Great White and Slaughter Aug. 11.

Tickets to Styx, Victoria Justice and the Last Summer On Earth tour will be available online only starting Friday, March 23 at 10 a.m. All tickets include reserved show seating and fair admission. To purchase tickets, visit WiStateFair.com.