Leona Lewis previews brand new song 'Fire Under My Feet'...

I love an underdog. Some people may not consider Leona Lewis an underdog given the global success of that first album. Sales for the albums released after that one have dramatically declined to a point where she became a struggle artist and fell off, HARD... almost like, none of that success ever even happened. But this new song she has just previewed off her new album sounds very promising. I'm impressed!

Thoughts?