Listen to 1 Hour of If You're Happy and You Know It Clap Your Hands for Bedtime, Pt. 18 online. 1 Hour of If You're Happy and You Know It Clap Your Hands for Bedtime, Pt. 18 is an English language song and is sung by Kids Music. 1 Hour of If You're Happy and You Know It Clap Your Hands for Bedtime, Pt. 18, from the album Nursery Sweet Songs, was released in the year 2022. The duration of the song is 1:13. Download English songs online from JioSaavn.