All I Want For Christmas Is You Mariah Carey
Olly oozes class in this soulful version of his third single from his eponymous debut album.
Olly is joined by a pianist and a violinist in this heartfelt version of 'Heart On My Sleeve'.
Olly's departure to big ballad territory proves that he's a versatile artist whose vocal range and personality can satisfy the characteristics of several genres.
The next Robbie Williams anyone?
Check out the video below and let us know what you think...