Mee-WOW! Zara Larsson and her dancers looked AMAZING at the Monster Mash-Up red carpet. This image appears in the gallery:#MonsterMashUp 2016: ALL The Photos From Last Halloween's BIGGEST Party 28. Mee-WOW! Zara Larsson and her dancers looked AMAZING at the Monster Mash-Up red carpet. (Pic: PA) 77 images See the full gallery: #MonsterMashUp 2016: ALL The Photos From Last Halloween's BIGGEST Party