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!)

See also:
JustSomeLyrics
33
33.116
Danity Kane Show Stopper (Yung Joc Remix) Lyrics
张学友 李香兰 Lyrics