Lyrics:

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 you really ought to show it
If you're happy and you know it, clap your hands. (clap clap)

If you're happy and you know it, stamp your feet (stomp stomp)
If you're happy and you know it, stamp your feet (stomp stomp)
If you're happy and you know it, then you really ought to show it
If you're happy and you know it, stamp 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 you really ought to 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 you really ought to show it
If you're happy and you know it, do all three. (clap-clap, stomp-stomp, hoo-ray!)