"I Don't Know a Thing About Love (The Moon Song)" is a song written by Harlan Howard and recorded by the American country music artist, Conway Twitty, with backing vocals by Twitty's daughter Joni Lee.
It was released in July 1984, as the second single from the album By Heart.
The song was Twitty's 48th number-one overall country hit.
[1] The song was covered by the American country music artist, Cody Johnson, for his 2021 album, Human: The Double Album.
Willie Nelson chose it as the title track to his Harlan Howard tribute album in 2023.