The new single ‘What Have You Done’ is a loud, unapologetic anthem inspired by the swagger of 2000s indie rock. It’s the sophomore release from his forthcoming long-form project, ‘The American Heartthrob’.

It’s driven by guitars, shimmering synths, and Jett’s unmistakable knack for infectious pop songwriting. . . Asking the question “how far would you go to chase the things you want?”

“This might be my favourite track I've ever put out. This song feels like a real turning point in the project and pure pop catharsis to me,” Jett says. “While the narrative is obviously heightened, pushing that level of antagonistic denial into something so fun just felt right. In my head, I was picturing a Tarantino-style '90s film or the action-comedy energy of ‘Death Becomes Her’.”

“We took a lot of inspiration from 2000s indie rock and early indie sleaze, reimagining the sounds of The Strokes and LCD Soundsystem into something tight, immediate and impossible to ignore. It's one of those songs that grabs you from the very first listen.”

The release comes amid a breakout period for the Canberra-born artist. This September, Jett will be a featured artist at Brisbane’s BIGSOUND, and earlier this year, he was elected as one of NME’s 100 Essential Emerging Artists for 2026.

‘What Have You Done’ is out now.