Roman Kemp & Marvin Humes looked ON POINT once again as #MonsterMashUp comes to London This image appears in the gallery:#MonsterMashUp 2016: ALL The Photos From Last Halloween's BIGGEST Party 47. Roman Kemp & Marvin Humes looked ON POINT once again as #MonsterMashUp comes to London (Pic: PA) 77 images See the full gallery: #MonsterMashUp 2016: ALL The Photos From Last Halloween's BIGGEST Party