“One” is a song written by Harry Nilsson from his 1968 album, “Aerial Ballet”.
It was recorded by the band “Three Dog Night” the following year and reached No.5 in the Billboard Hot 100. It was also a hit in Australia at the same time for John (“You’re The Voice”) Farnham where it peaked at No.4.
My version was recorded during a live stream on You Tube, September 26, 2021.