Melanie C – I Know Him So Well (feat. Emma Bunton)

"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.

"I Know Him So Well" was also covered by English recording artist Melanie C. The song was the first single to be taken from Melanie C's musical theatre-inspired and sixth studio album Stages. The song is a duet with Chisholm's fellow Spice Girls group member Emma Bunton. The song was released as a single on 11 November 2012. The b-side of the single is a cover of "You'll Never Walk Alone" from the musical Carousel. The music video for the song premiered on YouTube on 12 November 2012.

I Know Him So Well - 4:24
I Know Him So Well [Digital Single Master]* - 4:23
*less compression and distortion, lower volume but better sound.
I Know Him So Well [Live At Shepherd's Bush Empire] - 6:32
I Know Him So Well [Radio Edit] - 3:28