"I Know Him So Well" is a song from the concept album and subsequent musical Chess by Tim Rice, Benny Andersson and Björn Ulvaeus. In this duet, two women -- Svetlana, the Russian chess champion's estranged wife, and Florence, his mistress -- express their bittersweet feelings for him and at seeing their relationships fall apart.
Originally performed by Elaine Paige and Barbara Dickson (1984), and some cover versions including: Barbra Streisand (1985), Whitney Houston and her mother Cissy Houston (1987), Elaine Paige and Susan Boyle (later), and others with few languages version such as Dutch "Ik Ken Hem Te Goed", and Cantonese as (男人心).
