(Chee chee-oo chee, chee chee-oo chee)
  (Chee chee-oo chee, chee chee-oo chee)
  Once on a tree top tall a little bird
  (Chee chee-oo chee, chee chee-oo chee)
  Sang out the sweetest song I ever heard
  
  (Chee chee-oo chee, chee chee-oo chee)
  (He sang to me so merrily)
  (Chee chee-oo chee, chee chee-oo chee)
  (The little birdie on the tree)
  
  Life's such a lovely thing it seemed to say
  (Chee chee-oo chee, chee chee-oo chee)
  If you'd only sing your cares away
  (Chee chee-oo chee, chee chee-oo chee)
  Chee chee-oo chee so merrily it went along
  (Chee chee-oo chee, chee chee-oo chee)
  Chee chee-oo chee so happily his little song
  (Chee chee-oo chee, chee chee-oo chee)
  And so (and so) I sing (I sing)
  Chee chee-oo chee the happy happy little thing
  
  If you (if you) feel blue (feel blue)
  Sing chee chee-oo chee and you can be as happy too
  (Chee chee-oo chee, chee chee-oo chee)
  (Chee chee-oo chee, chee chee-oo chee)
  (Chee chee-oo chee, chee chee-oo chee)
  Sing this happy little song
  (Chee chee-oo chee, chee chee-oo chee)
  (Chee chee-oo chee, chee chee-oo chee)
  (Chee chee-oo chee, chee chee-oo chee)
  Chee chee-oo chee
  Chee chee-oo chee it sang to me so merrily
  (Chee chee-oo chee, chee chee-oo chee)
  Chee chee-oo chee the little birdie on the tree
  (Chee chee-oo chee, chee chee-oo chee)
  (If you feel blue)
  Sing chee chee-oo chee, chee chee-oo chee and you can be as happy too
  (Chee chee-oo chee, chee chee-oo chee)
  (Chee chee-oo chee, chee chee-oo chee)
  (Chee chee-oo chee, chee chee-oo chee)
  Sing this happy little song
  (Sing chee chee-oo chee, chee chee-oo chee and you can be as happy as can be)