From: www.dailymail.co.uk

By Daily Mail Reporter Last updated at 2:41 PM on 01st November 2009

The Hollywood set was out in force last night celebrating Halloween in all manner of ghoulish disguises.

Perez Hilton got his freak on dressed as Lady Gaga at Heidi Klum's 10th Annual Halloween Party in West Hollywood, California.

The celebrity blogger channeled Lady Gaga to perfection in a short black dress mounted with silver triangles and black fishnet tights. He even styled his hair to match the singer's distinctive platinum locks.

Perez's costume was reminiscent of the dress Lady Gaga wore on stage in Berlin earlier this year.