Katy Perry's 'Birthday' Performance At Billboard Music Awards 2014 -- BBMAs was Beautiful

Katy Perry gave 'Birthday' performance at the Billboard Music Awards 2014 (BBMAs) held at MGM Grand Garden Arena in Las Vegas. It was a satellite performance from her Prismatic tour.
Click here to watch the performance : https://www.youtube.com/watch?v=2yapyrKXEew