The 20 most underrated R&B albums of all time

Gladys Knight & the Pips had been a second-tier group for Motown before departing the legendary label and releasing this, their best full-length album. Kicking off with the classic “Midnight Train to Georgia” and including the smashes “Best Thing That Ever Happened To Me,” and “I’ve Got To Use My Imagination,” the album also features a stellar, Pips-only cover of “I Can See Clearly Now” and the group-penned closer “Window Raisin’ Granny.”