Rehab is a 2006 single by Amy Winehouse from her album Back to Black, built around her real-life refusal to enter rehabilitation treatment. The song became one of her signature hits, winning major awards and turning its repeated no, no, no chorus into a cultural shorthand for defiance. Online, the chorus has been lifted into short reaction clips and video edits, where the five-second refusal can stand in for any stubborn answer. Its staying power comes from that simplicity: everyone recognises the voice, the attitude and the joke immediately.