This is what we found on Wikipedia regarding the ILLENIUM:

Nicholas Daniel "Nick" Miller (born December 26, 1990), professionally known as Illenium (stylized in all caps), is an American musician, DJ, music producer, and songwriter. He has released five studio albums, his most recent being Illenium, released in April 2023. Illenium earned his first Grammy nomination following the release of his fourth studio album, Fallen Embers, released in July 2021. One of Illenium's more notable albums, Ascend, was released in August 2019 on Astralwerks. The album was Illenium's first to top the Billboard Dance/Electronic Albums chart and also reached his highest peak on the Billboard 200 at number 14.

A total of 57 of Illenium's songs have appeared on the Billboard Hot Dance/Electronic Songs chart, including two singles in 2019 that peaked at number 3: "Good Things Fall Apart" with Jon Bellion and "Takeaway" with the Chainsmokers (featuring Lennon Stella). Illenium has also worked on numerous notable remixes, including those for The Chainsmokers' "Don't Let Me Down", Taylor Swift's "Anti-Hero" and Flume's "Say It", the latter of which won the award for "Remix of the Year" at the inaugural Electronic Music Awards in 2017. He was included in the Forbes 30 Under 30 music list in 2020. His music has collectively accumulated over 1 billion streams on various platforms.