Which duo had a late-1970s hit with a remake of Sam & Dave's "Soul Man"?

Who had a 1979 No. 1 hit with "Hot Stuff"? In which 1979 film does a father ask a court "what law is it that says a woman is a better parent simply by virtue of h… Kurt Russell played which "King" in a 1979 TV film directed by John Carpenter? Marlon Brando played which renegade officer in "Apocalypse Now" (1979)? Robert Duvall played which general in the 1979 miniseries "Ike"? In which 1979 film does Chance the gardener tell Shirley MacLaine "I like to watch"? What first name was shared by painter Remington and composer Chopin? In which 1979 film does a creature burst out of John Hurt's chest?