<P> This is a list of the U.S. Billboard magazine Hot 100 number - ones of 1991 . The two longest running number - one singles of 1991 are "(Everything I Do) I Do It for You" by Bryan Adams and "Black or White" by Michael Jackson, which each attained seven weeks at number - one . "Black or White" stayed at the top of the chart for four weeks in 1991 and three additional weeks in 1992, totaling seven weeks . </P> <Table> Key <Tr> <Td> </Td> <Td> Indicates best - performing single of 1991 </Td> </Tr> </Table>

Number one song on the charts in 1991