"Rehab" has become a critical and commercial success internationally, and has been referred to as Winehouse's "signature song". It won three Grammy Awards at the 50th ceremony, including Record of the Year, Song of the Year, and Best Female Pop Vocal Performance. It also won an Ivor Novello Award for Best Contemporary Song. Winehouse's public battle with drug and alcohol addiction, and subsequent death, have contributed to the song's continuing popularity and appearance in the media.