the single "Sad Machine". The Vocaloid software voice, Avanna, was also used as a vocalist for this single. Robinson then embarked on the Worlds Live tour, a new live show that involved him singing, playing synthesizers, and triggering samples, supported by artists Giraffage and Lemaitre. The tour headlined popular music festivals, including Ultra Music Festival, Electric Daisy Carnival, and Coachella. A remix album of Worlds titled Worlds Remixed was released on October 2, 2015. It included remixes by electronic artists Odesza, San Holo, Mat Zo, Electric Mantis, Galimatias, Last Island, Chrome Sparks, Deon Custom, Rob Mayth, Point Point, Sleepy Tom, and Slumberjack. On January 31, 2016, Robinson announced on his Twitter account that he was producing new material after being "stuck" for a year and a half. On August 11, he released "Shelter", a collaboration with fellow musician and friend Hugo Leclercq, better known by his stage name Madeon. An animated music video was released for "Shelter" on October 18, animated by A-1 Pictures and jointly produced by Robinson, A-1 Pictures, and Crunchyroll. Robinson and Leclercq then embarked on a nearly year-long joint international tour dubbed the "Shelter Live Tour", where the two performed live shows onstage together, with supporting acts from Danger, Robotaki, and San Holo. On October 25, 2017, Robinson released a new single titled "Eon Break" under the alias Virtual Self, announced via his Twitter page. A music video was also released on Robinson's YouTube channel, containing abstract three-dimensional art and cryptic messages seemingly focusing on the words "angel", "virtual", "void", and "utopia". His follow up single was released on November 8, 2017, which is titled "Ghost Voices". An accompanying music video for the track was released on February 28, 2018, via Robinson's YouTube channel. In January 2019, it was announced that "Ghost Voices" was nominated for a Grammy Award for Best Dance Recording, marking Robinson's first nomination. Robinson celebrated the accomplishment by playing three Virtual Self sets in Los Angeles before the awards ceremony. In a statement to Billboard Dance, Robinson says he discovered the nomination through Twitter "of all places". At the time, he hadn't even realized "Ghost Voices" was submitted for consideration.Virtual Self released a self-titled EP on November 29, 2017. He held a debut live performance on December 8, 2017, in Brooklyn, New York City. Virtual Self shows continued in 2018, with appearances at multiple festivals including Ultra Music Festival, Electric Daisy Carnival,