"Upside Down" is a hit song by Diana Ross released on the Motown label. It was the first single taken from her 1980 album diana and hit number 1 on the Billboard Hot 100 on 6 September 1980. It also hit number 1 on the Billboard Disco/Dance and R&B charts. The single was released a full 4 weeks after the album was released. In its fifth week on the Billboard Hot 100, it made a dramatic leap into the Top 10 (*49-*10). It held down the number 1 title for 4 weeks. .