Jean-Baptiste Frédéric Isidor, Baron Thielemans, known professionally as Toots Thielemans, was a Belgian jazz musician. He was mostly known for his harmonica playing, as well as his guitar, whistling skills, and composing. According to jazz historian Ted Gioia, his most important contribution was in 'championing the humble harmonica', which Thielemans made into a 'legitimate voice in jazz'. He eventually became the 'preeminent' jazz harmonica player.
John Paul Pizzarelli Jr. is an American jazz guitarist and vocalist. He has recorded over twenty solo albums and has appeared on more than forty albums by other recording artists, including Paul McCartney, James Taylor, Rosemary Clooney; his father, jazz guitarist Bucky Pizzarelli; and his wife, singer Jessica Molaskey.