“Teddy Pendergrass’s voice was like a work of art. I know a lot of people were starting to focus on him around this time. He was so powerful, a very gutsy and emotive singer.

“The song is sad, but it's got a nice swing, a carefree feel. I used to go to clubs and watch people dance to it. Writing-wise, this was a natural. The way I was playing it, the way Gamble sang it – we knew it couldn’t miss. We took it to the Blue Notes and they killed it.

“Some songs take an hour, some take 20 minutes. This one was probably more in the 20-minute category. Gamble and I never spent weeks and months on anything like some writers you hear about. If the song wasn’t happening, we knew we should just move on to the next thing.”

Listen: