Listen to If You're Happy & You Know It online. If You're Happy & You Know It is an English language song and is sung by Nursery Rhymes Music. If You're Happy & You Know It, from the album Mega Toddler Party Songs - The Perfect Soundtrack for Children's Parties, Playtime & Sing-a-Longs, was released in the year 2014. The duration of the song is 1:30. Download English songs online from JioSaavn.