The event started out as a joke. Then the RSVP list grew to 2 million.
Now, the creators of the viral space oddity, “Storm Area 51 – They Can’t Stop All of Us,” are planning a music festival in Rachel, Nevada, the closest habitation to the Nellis Air Force Range and Area 51.
"The event/movement captivated millions of alien-enthusiasts. After discussing options with industry-leaders in the world of music festivals, Matty [Roberts] decided to move forward with this event," the website for Alienstock reads.
Brock Daily, one of the organizers of the event, told USA TODAY in a message that the purpose of the event was to "embrace the cultural statement made by the viral event.
"People believe in aliens and they obviously want to know what's going on in there [Area 51]," he said in a message. "So I believe this is the safest option to display our unified curiosity."
The festival is set for Sept. 20-22. Attendees should expect a celebration of aliens filled with surprise performances, art installations and camping, according to the website.
Brock, who is an Arkansas college student, said that the late night sets will consist of Electronic Dance Music artists, and that they plan on releasing the lineup in the next two weeks.
While the event claims the town of Rachel is "on board" with the event, the town website clarifies that residents were not asked.
"A dubious group, known for chaotic events like Burning Man and the Las Vegas Electric Music Festival has taken over this event," the website reads. "The residents were not asked and are not on board and will certainly not allow their town to be taken over by a bunch of drunken kids. This has a high potential of getting ugly."
The Little A’le’Inn, one of the few businesses in the town that is home to 58 people, states on its website that it is “BOOKED SOLID FOR ALIEN-STOCK."
“It doesn’t stop; our phone won’t stop ringing,” Connie West, of the Little A’le’Inn, told the Las Vegas Sun in July.
USA TODAY has reached out to the festival organizers and the inn for comment.
Inside Rachel, Nevada: Hunting for Area 51's aliens along Nevada's Extraterrestrial Highway
In July, the “Storm Area 51" event gained massive traction on social media, causing a stir among the public, celebrities and the federal government.
Air Force spokeswoman Laura McAndrews said in a statement to USA TODAY in July that military officials were aware of the event that aims to uncover what many people believe are conspiratorial secrets of the military installation in Nevada.
"The Nevada Test and Training Range is an area where the Air Force tests and trains combat aircraft," McAndrews said. "Any attempt to illegally access military installations or military training areas is dangerous."
In the past, event creators maintained that the event was a joke, intended to establish conversations for alien, UFO and conspiracy-theory memes.
“I just thought it would be funny and get me some thumbsy uppies on the internet,” a pinned post on the event page reads.
But the conception of a festival casts doubt on this statement.
Area 51, part of the larger Nevada Test and Training Range at Nellis Air Force Base, has been the subject of conspiracy theories that say the U.S. military is housing secrets about aliens and UFOs.
The U.S. government denied Area 51’s existence for decades before a public records request in 2013 showed it to be real.
Follow Elinor Aspegren on Twitter: @elinoraspegren. Contributing: Ryan Miller, USA TODAY.
This article originally appeared on USA TODAY: Area 51: Alienstock, music and celebration festival planned in Nevada