In the late 2000s, Jem Siow formed Your Ghost Is a Gift with vocalist Joel Martorana.
[6] The band changed its name to Endless Heights in 2009,[6] releasing two studio albums and five extended plays (EPs) before breaking up in 2019.
[9] In June 2020, the band released the single "A Dumb Dog Gets Flogged", which Jem Siow said "was born in reaction to the failed leadership of our government during the 2019–2020 Australian bushfires.
[11] In June 2021, the band released "We See U" as part of the hardcore punk compilation, This Is Australia Vol 2.
[12] In May 2022, the band announced the release of Gang Called Speed as their official debut EP, alongside its lead single "Not That Nice" which addresses Asian hate crimes.