KATY PERRY and ORLANDO BLOOM attend party at SEAN PARKERs home

Katy Perry stands in the wings watching as boyfriend Orlando Bloom walks the red carpet when they arrive at tech billionaire Sean Parker s home in Los Angeles for The Parker Institute for Cancer Immunotherapy launch party. Katy then follows on the red carpet and brings over Allison Williams to pose with her. Allison alerts Katy to problems with her makeup.