NEW YORK, NY - SEPTEMBER 26: Tony Kanal, Gwen Stefani, Tom Dumont and Adrian Young of No Doubt pose onstage during the Rock I
Kevin Mazur/WireImage

There are music festivals and then there is Rock in Rio. One of the world's largest live music extravaganzas will finally make its way to U.S. shores in 2015, and the festival took over New York City's Times Square to make its first batch of lineup announcements...plus entertain the crowd with a surprise performance from John Mayer.

Officials announced that Rock in Rio USA would take place in Las Vegas on May 8-9 and 15-16. And the bands will include MetallicaLinkin ParkTaylor SwiftJohn Legend and the Deftones

To celebrate the announcement, the festival brought out Brazilian metal heavyweights Sepultura and French percussion act Les Tambours Du Bronx to perform a single song. Then John Mayer took the stage, delighting the surprised crowd lined up outside the bright lights of the nearby NASDAQ lounge.

Mayer, cloaked in handsome glasses and an ill-fitting button down, sped through his 2002 hit "No Such Thing," and 2006's "Gravity," guitar solos and all. It might've been less than fifteen minutes, but it was definitely enough to appease all present. 

The newly reunited No Doubt also made a brief press appearance, announcing their excitement for the event and exiting as quickly as they arrived.

NEW YORK, NY - SEPTEMBER 26: John Mayer performs during the Rock In Rio USA event in Times Square on September 26, 2014 in Ne
Larry Busacca/Getty Images

Rock in Rio started nearly 30 years ago in the midst of a military coup. Roberto Medina, the festival's founder, sought to start a massive live music event, one that would promote both camaraderie within the country and its people. It must have worked, because after that first year (a lineup boasting QueenRod Stewart and AC/DC in 1985) the fest grew into a global sensation, expanding into events in Lisbon and Madrid, before eventually coming stateside.

In three decades more than 7.4 million people have attended the 14 editions of the festival. That's 85 days of live music and over 1,270 artists. Perhaps most impressive is the audience: A record 75 percent of the crowd are aged 15-50, trampling the young-person focus of most events of this caliber. Think Disney World, Coachella and everything between.

Pre-sale tickets for Rock in Rio USA are available now via the festival's official website. Stay tuned to Fuse for more info.