Kendrick Lamar and SZA will not perform their Oscar-nominated song ?All the Stars? from ?Black Panther? at the Oscars on Sunday. TheWrap reports a representative from the Academy confirmed that the song will not be performed by the stars or by any other duo or group at all during the Oscars. A source said Lamar is currently abroad and could not attend the ceremony. Lamar also turned down an opportunity to perform at the Grammys this year.