Sigala upped the freak factor during his Monster Mash-Up set with some killer facepaint This image appears in the gallery:#MonsterMashUp 2016: ALL The Photos From Last Halloween's BIGGEST Party 27. Sigala upped the freak factor during his Monster Mash-Up set with some killer facepaint (Pic: PA) 77 images See the full gallery: #MonsterMashUp 2016: ALL The Photos From Last Halloween's BIGGEST Party