You say it's your birthday It's my birthday, too...yeah They say it's your birthday We're gonna have a good time I'm glad it's your birthday Happy Birthday to you Yes we're going to a party party Yes we're going to a party party Yes we're going to a party party I would like you to dance Birthday Take a ch ch ch chance Birthday I would like you to dance Birthday Dance... You say it's your birthday Well it's my birthday, too...yeah You say it's your birthday We're gonna have a good time I'm glad it's your birthday Happy Birthday to you