"
Don't Know Why" is a song written by
Jesse Harris which originally appeared on his 1999 album,
Jesse Harris & the Ferdinandos. It was the second single by American singer
Norah Jones from her debut studio album
Come Away with Me (2002). Although Jones's version only peaked at number thirty on the U.S.
Billboard Hot 100, it was a critical success for her that helped establish her as a respected new artist, and subsequently her album sold extremely well. The single went on to win three
Grammy Awards in 2003 for
Record of the Year,
Song of the Year, and
Best Female Pop Vocal Performance. It remains Jones's biggest hit single in the United States to date, and her only one to reach the top 40 of the
Billboard Hot 100. The single was also a hit internationally and reached top 10 in several countries. The song charted at 459 in
Blender magazine's 500 Greatest Songs Since You Were Born.