Katy Perry 'lactates' beer out of her sexy bra dress during the opening night of her Vegas residency

NASA Webb Telescope references Katy Perry's hit 2008 song 'Hot n Cold' on social media

Katy Perry Plays With a New Alesso Collab, ‘When I’m Gone’

Katy Perry and Alesso Get Spacey With New Single ‘When I’m Gone’