Foolproof
   That?s what my heart?s become
   And I challenge anyone to break in
   I challenge anyone to make me open up the door
   Cos I?ve been fooled before
   And now I?m...
  
   Foolproof
   Older and wiser now
   And I?m never gonna fall for that old,
   Never gonna fall for that old
   Fairy tale anymore
   Cos I?ve been schooled before
   And cos I?m foolproof
  
   And I dare
   Anyone to try
   Not a care
   In the world have I
   As long as I am foolproof
  
   Oh no, they can?t fool me
   Cos I?ve been around the block a few times
   Been around enough to know I?m
   Coming back for more
   Cos I believe that your heart is pure
   And cos I?m...
  
   Foolproof
   That?s what my heart?s become