10cc- I'm Not In Love- documentary and song - new and improved

The masterwork, though, did not arrive until 1975's third album, The Original Soundtrack. I'm Not in Love, written by Stewart and Gouldman, turns the protestation on its head so simply and effectively you wonder why no one had written it before. But even if they had, I doubt they would have come up with the backing, a 256-voice choir built from recordings of the band singing single notes in unison.

On tour, they needed backing tapes to capture the dreamy magic, but no one minded. And even the mirrorball lighting when I saw them at the De Montfort hall in Leicester seemed somehow right.

There was another album before the original lineup split. How Dare You spawned two hits – Art for Art's Sake and I'm Mandy, Fly Me – but Godley and Creme wanted to move on. Gouldman and Stewart carried on until 1983 and there were more hits, but the magic years were those of the first three albums. The fractured relationships meant attempts at reunions in 1991 (with all four original members) and 1995 (with Gouldman and Stewart) were not successful.

Which seems a flat end to the story. Except that the music lives on. I'm Not in Love has become one of the most covered pop songs of all time, and no doubt the original soundtrack to many a love story.