Kyline Alcantara is only 16 years-old but has a following that marvels a superstar. The singer/actress is definitely multi-talented and her fans, who she calls Sunflowers, can definitely attest to that. For this #PreviewChallenge, we asked Kyline to answer (or rather, sing) our song slam book a capella. Listen to this teenagers sweet set of pipes in the short video below.