If you're happy and you know it, clap your hands (clap clap)
If you're happy and you know it, clap your hands (clap clap)
If you're happy and you know it, then your face will surely show it
If you're happy and you know it, clap your hands. (clap clap)

If you're happy and you know it, stomp your feet (stomp stomp)
If you're happy and you know it, stomp your feet (stomp stomp)
If you're happy and you know it, then your face will surely show it
If you're happy and you know it, stomp your feet. (stomp stomp)

If you're happy and you know it, shout "Hurray!" (hoo-ray!)
If you're happy and you know it, shout "Hurray!" (hoo-ray!)
If you're happy and you know it, then your face will surely show it
If you're happy and you know it, shout "Hurray!" (hoo-ray!)

If you're happy and you know it, do all three (clap-clap, stomp-stomp, hoo-ray!)
If you're happy and you know it, do all three (clap-clap, stomp-stomp, hoo-ray!)
If you're happy and you know it, then your face will surely show it
If you're happy and you know it, do all three. (clap-clap, stomp-stomp, hoo-ray!)

*花絮：二年級小朋友超有精神！給他用力stomp下去！拍攝地點音樂教室地震了，鏡頭晃動中......