I was a hum-drum person, leading a life apart   When love flew in through my window wide   And quickened my hum-drum heart      Love flew in through my window   I was so happy then   But after love had stayed a little while   Love flew out again      What is this thing called love?   This funny thing called love?   Just who can solve its mystery?   Why should it make a fool of me?      I saw you there one wonderful day   You took my heart and threw it away   That's why I ask the Lord in Heaven above   What is this thing called love?      I saw you there one wonderful day   You took my heart and threw it away   That's why I ask the Lord in Heaven above   What is this thing called love?