Kate Hudson’s Halloween party started getting outta hand when Katy Perry showed up looking hot (flaming hot, actually) -- and went over the edge with Lily Allen's getup.
The shot she took at famed music producer Dr. Luke was neither trick nor treat ... for him -- but Kesha might be laughing.
More TMZ TV
Audrina Patridge -- Scares Up Excuses for Halloween Meltdown
Ray Romano -- Just Say No to Extreme Haunting
Miley Cyrus -- Making Halloween Even More PORNY
ncG1vNJzZmivp6x7tbnZZ5qopV9nfXKAjmpoaGhhZLiiwMRmn66co6S7brfArbBmqJWnv7p5y6KjsmWRobmmuoyhmKWkn6yyprqMqZirrKliwa7GjK2taA%3D%3D