He is best known as the founder and frontman of indie pop band Dark Waves, and for co-writing Machine Gun Kelly's Tickets to My Downfall and Mainstream Sellout LP's.
Long signed a record deal in 2012, and in 2013 founded Dark Waves, which released a self-titled synth-pop EP in September the following year with Five Seven Music.
[5] A single off the EP, "I Don't Wanna Be In Love", was featured in an episode of The Vampire Diaries[6] and has been streamed over five million times on Spotify.
[7] In 2014, while experiencing challenges with his record label, Long accepted an invitation from friend and collaborator Tommy English to co-write music for Børns.
[1] The songs written during this period became the tracks of Machine Gun Kelly's fifth studio album, Tickets to My Downfall, with "Bloody Valentine" serving as the record's first single, followed by "Concert for Aliens" and "My Ex's Best Friend".
[17] Long can be seen playing guitar and singing backup vocals on Machine Gun Kelly's appearance as musical guest on Saturday Night Live in January 2021.
[18][19] In 2022, Long again collaborated with Baker and Barker to co-produce and co-write Machine Gun Kelly's sixth studio album, Mainstream Sellout.