“Don’t Know Why” is a song by the American singer-songwriter Norah Jones. The song was released for her debut album “Come Away with Me” in 2002.

“Don’t Know Why” is known for its relaxed, jazzy sound. Norah Jones combines influences from jazz, folk and blues, resulting in a gentle, timeless style. The song is about love and loss. The lyrics express a mixture of longing and confusion about the end of a relationship. The refrain “Don’t know why I didn’t come” conveys an emotional uncertainty. Due to its popularity, “Don’t Know Why” has been covered by various artists. The song has also been used in various films, television programs and commercials, contributing to its enduring presence in pop culture. The song is often regarded as one of their most characteristic and best-known pieces.