Listen to If You're Happy and You Know It (Instrumental) online. If You're Happy and You Know It (Instrumental) is an English language song and is sung by Modern Children's Songs and Kids Music. If You're Happy and You Know It (Instrumental), from the album 30 Circle Time Movement Preschool Nursery Rhymes, was released in the year 2020. The duration of the song is 0:58. Download English songs online from JioSaavn.