"Who's Leaving Who" is a song written by Jack White and Mark Spiro, first recorded by Canadian country singer Anne Murray in 1986. It achieved bigger popularity in Europe when it was covered by British Hi-NRG singer Hazell Dean in 1988. David Hasselhoff covered the song on his 1991 album David, produced by Jack White.
The song was first recorded by Anne Murray for her Gold-plus 1986 album Something to Talk About. The song was released as the album's second single, following her Canadian and US number one country single, "Now and Forever (You and Me)". The single failed to reach the same level of success, peaking at number 93 on the Canadian singles chart, and failing to chart on the US Billboard Hot 100. Its biggest success was on the adult contemporary charts, peaking at number 15 in Canada and number 26 in the US.
In 1988, Hazell Dean recorded a cover version of the song for her 1988 album Always. The song was produced by Stock Aitken & Waterman, and it was reworked to suit Hazell Dean's music style as a Hi-NRG song.
The single surpassed the popularity of Murray's version, and became Dean's biggest international success, becoming a top 10 hit in the UK, peaking at number 4, becoming her highest charting single there, tied with her 1984 single "Whatever I Do (Wherever I Go)". It was her first top 40 hit in the UK in four years. When released around Europe, it also became a success, and it was successful on the US dance chart.