Charli XCX has entered her darkest era yet. With “House,” her new collaboration with The Velvet Underground legend John Cale for Emerald Fennell’s upcoming Wuthering Heights (2026), Charli steps into a world of gothic romance, decaying architecture, and emotional brutality, a complete reinvention from her Brat era.

In this deep-dive, The Last Mixed Tape explores Charli’s career-defining pivot after Brat to the haunting production choices and Cale’s iconic narration, this episode unpacks why “House” is quickly becoming one of the most important songs of her career.