Music historian Ted Gioia describes "They're Red Hot" as:
[one] of his best dance numbers... evoking the pitches of street vendors, [a] look backward to the world of medicine shows and itinerant merchants... This is the most lighthearted interlude in all of Johnson's oeuvre, opening up a different perspective on this supposedly devil-haunted soul.[2]
It’s the same kind of offbeat and lascivious goofiness that made the Chili Peppers the Chili Peppers, and the fact that the band’s name is partially in the song title certainly helps solidify the connection. [It is] silly, simple, and a wonderfully wacky to end Blood Sugar Sex Magik.[3]