() And the beat goes on () I'm a happy girl () It's my birthday song () In my happy world I know it's gonna be a good day ( ) Oh yeah, today is my birthday, huh () And the beat goes on (and the best goes on) () I'm a happy girl (I'm a happy girl) () It's my birthday song (oh yeah, it's my birthday) () In my happy world (in my happy world) () Light my candles, gotta make a wish () Wrap up the present and seal it with a kiss () Gimme a spanking, start the day off right (woo-wee) () () 'Cause it's my day, you gonna sing my song tonight () And the beat goes on (and the best goes on) () I'm a happy girl (I'm a happy girl) () It's my birthday song (oh yeah, it's my birthday) () In my happy world (in my happy world) I know it's gonna be a good day Oh yeah, today it's my birthday () I'm a happy girl (I'm a happy girl) () My type of party there's no hangover () So grab your things, you better come over () We get high and we still stay sober () We throw it down and then we gonna start over () My type of party there's no hangover () And the beat goes on (and the best goes on) () I'm a happy girl (I'm a happy girl) () It's my birthday song (oh yeah, it's my birthday) () In my happy world (in my happy world) () I want a diamond, don't give me a fake () I'll let you lick the frosting off my cake () Gimme a spanking, start the day off right (woo-wee) () () 'Cause it's my birthday, you'll be singing my song tonight () And the beat goes on (na na na na, na na na na na) () I'm a happy girl (na na na na, na na na na na) () It's my birthday song ((na na na na, na na na na na) () In my happy world (na na na na, na na na na na) I know it's gonna be a good day Oh yeah, today is my birthday () I'm a happy girl () In my happy world I know it's gonna be a good day Oh yeah, today is my birthday I'm a happy girl, it's my birthday everyday () Na na na na, na na na na na () Na na na na, na na na na na, gonna sing my song tonight () Na na na na, na na na na na () Na na na na, na na na na na, gonna sing my song tonight () Na na na na, na na na na na () Na na na na, na na na na na, gonna sing my song tonight () Na na na na, na na na na na () Na na na na, na na na na na, gonna sing my song tonight Happy birthday!