Nicholas Daniel Miller, known professionally as Illenium, was born on December 26, 1990, in San Francisco, California, and relocated to Denver, Colorado, in 2013. He began releasing music as a bedroom producer in 2013, with early EPs including a self-titled release and Risen in 2014, followed by his debut album Ashes in 2016. His style blends melodic dubstep, future bass, and emotional electronic elements, often featuring collaborations with vocalists. Illenium's sophomore album Awake (2017) charted on the Billboard 200, while Ascend (2019), Fallen Embers (2021), and his self-titled album (2023) each debuted at number one on the Billboard Dance/Electronic Albums chart. He received a Grammy nomination for Fallen Embers and released his sixth album, Odyssey, in February 2026. Recognized by Billboard as a top Dance/Electronic artist of the 2010s and in Forbes' 2020 30 Under 30, his music has amassed over 5 billion streams. Illenium's live performances incorporate live keyboards, drum pads, and cinematic visuals, appearing at festivals such as Coachella, Lollapalooza, Bonnaroo, and EDC Las Vegas. He has sold out arenas like Madison Square Garden and Red Rocks Amphitheatre, and in 2026 launched a nine-show residency at Sphere Las Vegas.