Katy Perry was spotted outside Bar Deluxe in Hollywood on Thursday night (December 18), as wwere Avril Lavigne, Ali Simms, Perez Hilton, Jesse McCartney, Alessandra Toreson, and Terri Seymour. Also there, but not seen in the clip was Paris Hilton, who according to the Los Angeles Times was robbed of $2 million in jewelry at her home in Sherman Oaks. Watch Hollywood.tv footage below.