Both 'Birthday' by Katy Perry, and 'Pretty Hurts' by Beyoncé have come out! The pop superstars' videos were... interesting, and true to the respective artist's style. Subscribe for more videos! br br Original Content By: br br Katy Perry - Birthday (Official) br br br br Beyoncé - Pretty Hurts br br br Music: Brood by Jon Persitz br br Let us know your favorite videos of the day in the comments! If we make a video based on your suggestion, we'll let everyone know the mad genius behind it all.