Sophisticated Ladies is an album by Charlie Haden's Quartet West with guest vocalists Cassandra Wilson, Diana Krall, Melody Gardot, Norah Jones, Renee Fleming and Ruth Cameron, and a string orchestra arranged and conducted by Alan Broadbent which was released on the EmArcy label.

Cassandra Wilson is an American jazz singer, songwriter, and producer from Jackson, Mississippi. She is one of the most successful female jazz singers and has been described by critic Gary Giddins as "a singer blessed with an unmistakable timbre and attack [who has] expanded the playing field" by incorporating blues, country, and folk music into her work. She has won numerous awards, including two Grammys, and was named "America's Best Singer" by Time magazine in 2001.