Madonna, because no one is calling her Madonna Louise Ciccone, is the icon of popculture. Since 1982 she raises controversy and ... still looks young! Like a virgin! Since Michael was the King of Pop, Madonna is her Queen.
Michael Jackson is the King of Pop. No matter if he was 'Black or White'. 'Who is it?' your child may ask. 'It's Billie Jean, he rocked my music world' you may answer. 'Beat it'.