MILWAUKEE (April 15, 2015) - Summerfest officials are excited to announce an additional 15 headliners that will take the stage at Summerfest 2015. Performance dates, times and stage locations for all of this year's headliners will be announced in approximately two weeks. 

The following Grounds Stage Headliners have been added to the 2015 lineup:

Matt Nathanson                        Robert DeLong

OK Go                                         Esperanza Spalding

Cowboy Mouth                          Big Data

Vinyl Theatre                             The Wind + The Wave

Angaleena Presley                   Ximena Sariñana

Amanda Shires                         Kaleo

Clare Dunn                                Failure

Logan Mize           

On March 24, Summerfest announced over 90 headliners including Kaskade, Bastille, The Flaming Lips, Sheryl Crow, Edward Sharpe and the Magnetic Zeros, LeCrae, Santigold and Jane's Addiction, to name a few. That announcement included a promotional video and premiered nationally online at Billboard.com.

Previously announced Marcus Amphitheater Headliners include The Rolling Stones, Florida Georgia Line with special guests Thomas Rhett and Frankie Ballard, Kings of Leon with special guest KONGOS, Keith Urban with special guests Phillip Phillips and Dan + Shay, Zac Brown Band, Linkin Park with special guest A Day to Remember, Kendrick Lamar with special guest ScHoolboy Q and Ed Sheeran with special guest Rixton. The remaining Marcus Amphitheater Headliners will be announced in the coming weeks.

Music fans can buy tickets early, skip the lines at the Summerfest Box Office and conveniently download or print their own General Admission tickets at home when they purchase them on Summerfest's website. Visit the new and improved Summerfest Store now to find General Admission Tickets, Weekday Admission Tickets and 3-Day Passes. The 11-Day Power Pass presented by Pick 'n Save is available for only $80 exclusively at 68 Pick 'n Save locations across southeastern Wisconsin from now - June 1 or until supplies last.

Summerfest 2015 will take place June 24 - 28 and June 30 - July 5 from Noon until Midnight and will be closed Monday, June 29. Following its 1968 debut, Summerfest has evolved into what is now recognized as "The World's Largest Music Festival" and Milwaukee's cornerstone summer celebration, bringing the music industry's hottest stars, emerging talent and local favorites along with approximately 900,000 people from Milwaukee and around the world together each year for an unforgettable live music experience. During the festival, the spotlight shines on over 800 acts, over 1,000 performances, 11 stages, delectable food and beverages and interactive activities, all in a world-class festival setting. Patrons can also enjoy Miller Lite, the Official Beer of Summerfest. For more details, visit Summerfest.com, Facebook.com/summerfest or Twitter: @Summerfest.