Alexandra Burke is Britain's newest diva with two number 1 singles under her belt.

Bad Boys, Alex's second single, went to Number 1 this week and her first album Overcome is out now.

But just over a year ago it was a very different story for Alexandra Burke. The superstar singer back then was just an average Londoner with a dream.

She was working in bars and restaurants and singing at christenings - and now she is one of the biggest selling female artists of all time.

Find out what a difference a year makes in our exclusive behind the scenes video, above, as Alexandra spends the day at This Morning and performs her new single.