0 0 0 You sing, 'Happy Birthday!'~ $n sings, 'Happy Birthday!'~ You sing, 'Happy Birthday!' to $N.~ $n sings, 'Happy Birthday!' to $N.~ $n sings, 'Happy Birthday!' to you.~ Who?~ You sing, 'Happy Birthday!' to yourself.~ $n sings, 'Happy Birthday!' to $mself.~