Jessie J, who is currently doing lots of public appearances to promote the release of her debut album 'Who You Are', stopped by Radio 1's headquarters this morning to perform in the the iconic live lounge. 

All acts that enter the live lounge include a cover song in their respective sets and the 'Price Tag' singer-songwriter surprised everyone by selecting a track that no one could have guessed. Despite mainstream and pop-based predictions, she defied expectations and gave a stunning acoustic rendition of 'Young Blood' by The Naked and Famous. 

Fans on Twitter had been guessing that Jessie might cover something by Lady Gaga or Katy B, but she came up trumps with this fantastic song by the great New Zealand based band. Check out her own version of 'Young Blood' here: