Last month, Milwaukee's Summerfest announced its initial 2014 lineup. Now the Arctic Monkeys have been announced as another headliner and will perform on one of the ground stages rather than the Marcus Amphitheater, which hosts most of the festivals big-name acts. This means fans can see the show for a maximum $16 ticket price.

Other notable additions to the lineup include Phantogram, Lake Street Drive, Brother Ali, The Pretty Reckless, Rick Springfield, Railroad Earth, The Chainsmokers, The Orwells and Ingrid Michaelson, among others.

These acts will join previously announced headliners Lady Gaga, Bruno Bars, Brad Paisley, OutKast, Dave Matthews Band, Mötley Crüe, Fall Out Boy & Paramore, Zac Brown Band and Usher.

Other previously announced ground stage performers include New Order, Nas, Tegan & Sara, Rise Against, Girl Talk, Gary Clark Jr., Ray LaMontagne, The Head and the Heart, The Hold Steady, Best Coast, Ludacris, Atmosphere, Brand New, Umphrey's McGee, and Joan Jett & The Blackhearts. Melissa Etheridge, Fitz & The Tantrums, The Airborne Toxic Event, B.o.B., The Fray, The Neighbourhood, Ben Harper and Charlie Musselwhite, Trombone Shorty & Orleans Avenue, ZZ Ward, Cheap Trick, Walk Off the Earth, Ziggy Marley, A Great Big World, Kool and the Gang, Switchfoot, Yonder Mountain String Band, The Wailers, Rusted Root, George Thorogood & The Destroyers, The Crystal Method, Delta Rae, St. Lucia, Moon Taxi, Taj Mahal Trio, Matisyahu and more.

Summerfest, billed as the world's largest music festival, takes place at Henry Maier Festival Park from June 25-29 and July 1-6. It launched in 1968 and now attracts approximately 900,000 concertgoers each year. This year's festival features 800 artists on 11 stages.

General admission tickets are on sale now through the festival's website. Tickets for headlining performances (except Arctic Monkeys), which take place at Marcus Amphitheater, are sold separately.

Dates, times and stage locations for all the ground-stage headliners are expected to be announced in two weeks. See the schedule for the Marcus Amphitheater headliners below.

Summerfest Headliner schedule:

06/25: Bruno Mars with special guest Aloe Blacc
06/26: Lady Gaga
06/27: Brad Paisley with special guest Darius Rucker
06/29: OutKast with special guest Gary Clark Jr.
07/02: Dave Matthews Band
07/03: Zac Brown Band
07/04: Mötley Crüe with special guest Alice Cooper
07/05: Fall Out Boy & Paramore with special guests New Politics
07/06: Usher with special guest Bebe Rexha

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