what was the number one song in 1982 by sir paul mc carthy and stevie wonder

"Ebony and Ivory" is a song that was released in 1982 as a single by Paul McCartney and Stevie Wonder
, the song aligns the black and white keys of a piano keyboard with the theme of racial harmony. The single reached number one on both the UK and the US charts
. During the apartheid era, the South African Broadcasting Corporation banned the song after Wonder dedicated his 1984 Academy Award for Best Original Song to Nelson Mandela.

Apartheid was characterised by an authoritarian political culture based on white supremacy, which ensured that South Africa was dominated politically, socially, and economically by the nation's minority white population. white citizens had the highest status, followed by Asians and Coloureds, then black Africans