Gladys Knight: a little more pop - y (Midnight Train to Georgia, You’re the Best Thing…) My favorite GK & tP song is her most soulful, least pop-y – her version of “I Heard it Through the Grapevine”, which is also my favorite of the 3 versions that charted.
Aretha: also went pop, with covers of “I Say a Little Prayer” (Bacharach) and “You Make Me Feel Like a Natural Woman” (Carole King), but she is The Queen of Soul. Her early stuff is really old-school down & funky soul, like “Dr Feelgood”, “I Never Loved a Man” and of course, Otis Redding’s “Respect”. And holy shit did she have a vocal range.
Check out her scene in Blues Brothers, leading up to the “Think” number. Pretty good actress, too…I love the “best damned chicken in the state” line.