This morning, Summerfest added yet another show to their Marcus Amphitheater set list. Alt rockers Fall Out Boy and Paramore will perform at the festival's biggest stage Saturday, July 5, alongside special guest New Politics.

They join Bruno Mars, Lady Gaga, Brad Paisley, Dave Matthews Band, Zac Brown Band and Motley Crue as the Summerfest acts announced so far.

Summerfest marks the latest stop on Fall Out Boy's return to stardom after taking a hiatus from 2009 to 2012. They returned this past year with a new album, "Save Rock and Roll," and two hit songs, "My Songs Know What You Did in the Dark (Light Em Up)" and "Alone Together." They just recently played a show at The Rave this past December.

Paramore has also found much success in the mainstream alt/punk music scene, with recent hits like "Still Into You" and "Ain't It Fun." Lead singer Hayley Williams has also made guest appearances on popular songs like "Airplanes" and Zedd's current dance hit "Stay The Night."

Tickets for the show go on sale Saturday, March 1 at 10 a.m. Tickets – which include admission to Summerfest – can be purchased at the Summerfest box office (temporarily relocated to the Mid-Gate), Ticketmaster centers, Walmart stores, online at Ticketmaster.com and by phone at (800) 745-3000 or (866) 448-7849.

Summerfest 2014 runs June 25-29, then picks back up July 1-6.