"Rehab" is a song by English singer-songwriter Amy Winehouse from her second studio album, Back to Black (2006). Written by Winehouse and produced by Mark Ronson, it was released as the album's lead single in the United Kingdom on 23 October 2006. The lyrics are autobiographical, describing a protagonist's drinking habits and refusal to enter rehabilitation clinics.
The song received widespread critical acclaim and enjoyed commercial success in Winehouse's native England and abroad. .