MILWAUKEE – June 2, 2011 – Milwaukee World Festival, Inc. officials are excited to announce the eleventh and final headliner slated for Summerfest 2011. Jason Mraz will headline the Marcus Amphitheater on Saturday, July 2 at 6:30PM along with special guest, Guster.

Hailed as one of today’s most gifted pop troubadours, singer-songwriter Jason Mraz broke into the music scene with his debut album, Waiting for My Rocket to Come, with hit single “The Remedy (I Won’t Worry)”. Influenced by reggae, pop, folk, jazz and hip hop, his next two studio albums, Mr. A-Z and We Sing. We Dance. We Steal Things., also found major success, racking up an impressive six Grammy nominations and multi-platinum certifications around the world. He won two Grammy’s in 2010 for Best Male Pop Vocal Performance and Best Pop Collaboration with Vocals. As a songwriter, Mraz has been feted with the Songwriters Hall of Fame’s esteemed “Hal David Starlight Award,” presented to gifted songwriters who are making a significant impact in the music industry via their original songs.

He maintains a very close relationship with his fan base and is a critically acclaimed live performer having made his musical journey from coffee shops to arenas and stadiums around the world. Mraz’s hit list is growing and contains the singles “You and I Both”, “Wordplay”, “Geek in the Pink”, “I’m Yours” and “Lucky” (featuring Colbie Caillat). “I’m Yours” was a momentous #1 smash in many formats around the world, earning ASCAP’s 2010 “Song of the Year” award while also setting the record for the longest-running song in the 51-year history of Billboard’s Hot 100.

Beyond music, Jason Mraz is a photographer, activist, surfer, yogi, student and teacher. Jason and Jason Mraz Foundation’s main focus is within arenas of human trafficking and human equality, environment preservation, arts and education, and recovery and assistance. He was named the 2010 SIMA Humanitarian of the Year and is an active supporter of several charities including VH1 Save The Music, Life Rolls On, Free The Children, Musicares, True Colors Fund, SPARC, his hometown arts program and many more.

Joining Mraz are American alternative rockers, Guster, a band known for their live performances and humorous stage banter. With six studio albums and hit singles including “Fa Fa”, “Barrel of a Gun”, and “Satellite” the band’s long standing career has not slowed down. Guster’s dedicated fan base has spread rapidly over the past decade and fans know when they see the band perform live they’re in for a unique performance that has a style all its own.

Tickets go on sale this Saturday, June 4 at 11:00AM and include Summerfest admission. All reserved seats are $37 at the Marcus Amphitheater Box Office. Tickets can be purchased at the Marcus Amphitheater Box Office, Ticketmaster Ticket Centers, Walmart stores, online at Ticketmaster.com and by phone at 1.800.745.3000 (live Ticketmaster Agent) or 1.866.448.7849 (“Ticketmaster Express” automated phone line). Patrons may also utilize “ticketfast” at Ticketmaster.com to print bar coded concert tickets from home. Convenience fees may be added to all purchases.

Due to the construction project on the south end of the grounds, the Marcus Amphitheater Box Office has been temporarily relocated to the intersection of Harbor Drive and Chicago Avenue at the Mid-Gate of the festival grounds. The building on the north side of the Mid-Gate will serve as the Marcus Amphitheater Box Office.

Summerfest 2011 will take place June 29 – July 3 and July 5 – 10, from Noon until Midnight. Summerfest will be closed Monday. The World’s Largest Music Festival and Milwaukee’s cornerstone summer celebration attracts the music industry’s hottest stars, emerging talent and local favorites. The Marcus Amphitheater and 10 additional stages, along with a diverse selection of food and beverage vendors, marketplaces and interactive exhibits, are set against the Lake Michigan and downtown backdrops, creating a festival experience like no other. Patrons can also enjoy Miller Lite, the Official Beer of Summerfest. For more details visit Summerfest.com.