it is isn't it Headwreck. Its on his self titled Album John Barrowman. I've seen Mack and Mabel and I adore that song. I'd love to know if he sings Send In The Clowns
It is a lovely song, Neets. Possibly a generation thing but my favourite cover of it is by Robert Preston, who sang it in the musical. It was his version that appeared during Torville and Dean's hay day. Magnificent voice. Unfortunately not available on YT but I did buy a recording of it :)