生日歌詞如下：
《祝你生日快樂》
（歌詞）:
happy birthday to you
happy birthday to you
everyday joys we dream
hoping a big surprise
we share it with youuuuuu
make you feel all the smiles that you had in our minds
yesterday and today, tomorrow's here, let's start today!
Happy birthday to youuuuuu
happy birthday my dear one
all our hopes and dreams for you, will you accept and wear?
wish a happy birthay to youuuuuu
（副歌）: 祝你生日快樂，祝你天天快樂，希望你是個驚喜，生日快樂，讓我們和你一起分享快樂，願你一切安好，生日快樂！
這是一首簡單的生日祝福歌曲，希望對你有所幫助！