The song "Don't Know Why" is written by Jesse Harris and famously performed by Norah Jones, released as part of her debut album "Come Away with Me" in 2002. It gained critical acclaim and commercial success, winning three Grammy Awards including Record of the Year and Best Female Pop Vocal Performance. The song is about longing, lost love, and emotional reflection on a relationship, conveying a sense of confusion and sorrow over not being able to fully engage with or respond to a significant other. Interpretations vary, with some seeing it as a story of emotional withdrawal, fear of commitment, or the pain of being left behind. Norah Jones' soft, jazzy, and intimate vocal style adds to the song's appeal and timelessness in contemporary jazz and pop music.
If specifics on lyrics or deeper interpretations are needed, I can also provide an analysis or details on Norah Jones' performance of the song.