The single's B-side is "The Good Guy's Supposed to Get the Girls". Both "I Know" and "The Good Guy's Supposed to Get the Girls" are from Bailey's 1983 album Continuation.[1]
Critical reception
Eleanor Levy of Record Mirror scribed "pleasant melody, beautifully performed. No surprises but a lot of class".[3] Paul Willistein of The Morning Call proclaimed that George Duke's "keyboard and synthesizer part turn I Know into the album's best cut".[4]