Jason Mraz performs his single I'm Yours and a beautiful Christmassy number.

He cleared up the small issue of how you should pronouce his surname and admitted that over the years he has been called all sorts of things! He said he would like to date Welsh songstress Duffy - he just can't resist those dimples!

And Sara also asked him what its like living on an avocado farm. He answered probably the toughest question of his career so far... What goes better with avocados - prawns or mozzarella?