Robbie Williams has exposed a secret from Guy Ritchie's past on his new album, according to the Mirror.

Robbie's experimental album, Rudebox74, includes a track entitled 'She's Madonna', which sources claim is based on a conversation Ritchie had with an ex-girlfriend.

When Ritchie split with Tania Strecker, whom Robbie later went on to date, he reportedly told her "Look, you know I really love you, but she's Madonna."

A music industry source said: "It seems Robbie always had this conversation in the back of his mind for a song. Probably without realising the subject matter behind the song, Madge gave She's Madonna the thumbs-up when Robbie personally played it to her at her London home earlier this summer.

"No doubt he'll be keeping his fingers crossed that she'll agree to appear in the video when it's a single early next year."