lyrics: [Verse 1: Paul McCartney and John Lennon]
  They say it's your birthday
  Well, 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
  
  [Interlude: Paul McCartney]
  One, two, three, four, five, six, seven, eight!
  
  [Bridge 1: John Lennon, & McCartney, & McCartney and George Harrison]
  Yes, we're going to a party, party
  Yes, we're going to a party, party
  Yes, we're going to a party, party
  
  [Bridge 2: Paul McCartney]
  I would like you to dance (Birthday)
  Take a cha-cha-cha-chance (Birthday)
  I would like you to dance (Birthday)
  Dance, yeah, woo, come on (Come on)
  
  [Instrumental Verse]
  
  [Bridge 2: Paul McCartney]
  I would like you to dance (Birthday)
  Take a cha-cha-cha-chance (Birthday)
  I would like you to dance (Birthday)
  Woo, dance! Dance!
  
  [Verse 2: Paul McCartney and John Lennon]
  They say it's your birthday
  Well, 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