What Do They Know sheet music. Arrangement for Piano and Guitar. By Wayne Hector, Jimmy McCarthy and Steve Mac
By Johann Sebastian Bach, Ward Swingle and Jem Griffiths, for Electric guitar, Guitar and Piano, style Electronic, Adult Alternative and Alternative Pop/Rock
By Julie Flanders, October Project and Emil Adler, style Stage & Screen
By Boyz II Men and Nathan Morris, for Guitar and Electric guitar, style Adult Contemporary, Folk and Pop
By Tracey Ullman, Brian Seals and Dick Scanlan, for Guitar, Piano and Electric guitar, style Folk, Contemporary R&B and Pop Rock
By Jack Cassidy and Harold Rome, for Piano, style Musical and Stage & Screen