Some clues then

15. My eyes become large and the light that you shine can be seen? (I don't think he was balancing a ball on his nose when he sang this?)
27. If we show up, we gon' show out Smoother than a fresh jar of Skippy (Was part of this nicked from a well known nightclub rowing song?)
30. My heart's crippled by the vein that I keep on closing You cut me open and I (One of Mr. Cowell's proteges.)