Pakinggan ang "Kung Mababalik," ang theme song ng pinakabagong GMA Afternoon Prime series na 'Cruz vs. Cruz,' na inawit ng isa sa lead stars na si Vina Morales.br br Performed by Vina Moralesbr Composed and arranged by Rina May L. Mercadobr Vocal supervision by Anne Figueroabr Produced by Rocky S. Gachobr GMA Music Publishing br br Abangan ang 'Cruz vs. Cruz,' world premiere ngayong July 21, sa GMA Afternoon Prime.