Leona Lewis returned to the X-Factor stage to sing her smash hit, "Happy".
As per usual, Leona's performance was amazing. She looked elegant and sang it brilliantly, especially the big high note in the middle. It crazy that she actually hits that note live and is not just a one time studio note. She is very talented and a great performer. I really love the black dress and the eye make-up. It really highlights the darkness of the song. Well done!
