《happy birhtday》的歌詞如下：
Happy birthday to you
祝你生日快樂
Happy birthday to you
祝你生日快樂
Happy birthday, dear [名字]
祝你生日快樂
Happy birthday to you
Every year, on the day you were born
每年，在你出生的那一天
the angels get together and sing
天使們聚集一起唱歌
A happy birthday to you
它們為你唱著生日快樂歌
You make each day, a happy birthday day
你使每一天都變成了一個快樂的生日
When you smile your special smile
當你露出一絲特殊的微笑時
the day just comes in colors
日子也變得五彩繽紛
You're all that matters in this world
在這個世界上，你才是最重要的事
So here's a birthday wish from me to you
所以，這是我從這裡對你許下的生日願望
Happy birthday to you
祝你生日快樂
Happy birthday, dear [名字]
祝你生日快樂
Happy dreams tonight, Happy memories forever
今晚做個美夢，美好的記憶永遠留存