"Thank You" is a song written and performed by English singer-songwriter Dido. The song made its first appearance in 1998 on the soundtrack of the movie Sliding Doors. It was later included on Dido's 1999 debut album, No Angel, and was released in September 2000. The same year, American rapper Eminem sampled the track for his hit single "Stan", which helped propel "Thank You" and No Angel to mainstream success.

Florian Cloud de Bounevialle Armstrong, known professionally as Dido, is an English singer and songwriter. She attained international success with her debut album No Angel (1999). Hit singles from the album include "Here with Me" and "Thank You". It sold over 21 million copies worldwide, and it won her several awards, including two Brit Awards; additionally, she won Best British Album and Best British Female as well as the MTV Europe Music Award for Best New Act. The first verse of "Thank You" is sampled in "Stan", a critically acclaimed collaboration with American rapper Eminem. Her next album, Life for Rent (2003), continued her success with the hit singles "White Flag" and "Life for Rent". In 2004, Dido performed with other British and Irish artists in the Band Aid 20 version of the charity single "Do They Know It's Christmas?".