Katy Perry Performs 'Birthday' At Billboard Music Awards 2014 - BBMAs 2014

Katy Perry Performs 'Birthday' At Billboard Music Awards 2014 - BBMAs 2014. 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.<br />Click here to watch the performance : https://www.youtube.com/watch?v=2yapyrKXEew