What black-pop changing group has worked with producer Rex Salas?
Earth, Wind &amp; Fire: Earth, Wind & Fire (EWF) is an American band that has spanned the musical genres of R&B, soul, funk, jazz, disco, pop, rock, Latin and African. Earth, Wind &amp; Fire: Rolling Stone" "Magazine" described them as "innovative, precise yet sensual, calculated yet galvanizing" and declared that the band "changed the sound of black pop".
i don't know