介紹：
    如果你感到快樂(lè),你是知道的,
    拍拍你的手。(鼓掌!鼓掌!)
    如果你感到快樂(lè),你是知道的,
    拍拍你的手。(鼓掌!鼓掌!)
    如果你感到快樂(lè),你是知道的,
    然后,你肯定會(huì)表現(xiàn)出來(lái)。
    如果你感到快樂(lè),你是知道的,
    拍拍你的手。(鼓掌!鼓掌!)
    如果你感到快樂(lè),你是知道的,
    跺跺你的腳。(踩!踩!)
    如果你感到快樂(lè),你是知道的,
    跺跺你的腳。(踩!踩!)
    如果你感到快樂(lè),你是知道的,
    然后,你肯定會(huì)表現(xiàn)出來(lái)。
    如果你感到快樂(lè),你是知道的,
    跺跺你的腳。(踩!踩!)
    如果你感到快樂(lè),你是知道的,
    喊“萬(wàn)歲!”(萬(wàn)歲!)
    如果你感到快樂(lè),你是知道的,
    喊“萬(wàn)歲!”(萬(wàn)歲!)
    如果你感到快樂(lè),你是知道的,
    然后,你肯定會(huì)表現(xiàn)出來(lái)。
    如果你感到快樂(lè),你是知道的,
    喊“萬(wàn)歲!”(萬(wàn)歲!)
    如果你感到快樂(lè),你是知道的,
    所有三個(gè)。(拍拍手!拍拍手! !萬(wàn)歲! !踩重)
    如果你感到快樂(lè),你是知道的,
    所有三個(gè)。(拍拍手!拍拍手! !萬(wàn)歲! !踩重)
    如果你感到快樂(lè),你是知道的,
    然后,你的臉肯定會(huì)展示它。
    如果你感到快樂(lè),你是知道的,
    所有三個(gè)。(拍拍手!拍拍手! !萬(wàn)歲! !踩重)
    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!"(Hurray!)
    If you're happy,and you know it,
    Shout"Hurray!"(Hurray!)
    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!"(Hurray!)
    If you're happy,and you know it,
    Do all three.(Clap!Clap!Stomp!Stomp!Hurray!)
    If you're happy,and you know it,
    Do all three.(Clap!Clap!Stomp!Stomp!Hurray!)
    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!Hurray!)