HE’S GOT THE ELF FACTOR! Louis Walsh stars in new Christmas advert for Elves Behavin’ Badly toy craze Former X-Factor judge Louis Walsh stars in Christmas campaign advert for toy brand Elves Behavin’ Badly The brand sold TWO MILLION elves in 2017 when the elf toy craze went viral on social media Parents prank their kids with witty elf set-ups and share the photos on social media with #ElvesBehavinBadly Marketing campaign kicks off with cheeky Christmas ad alongside a national