While they probably don’t have that extra something that gives pop stars their iconic status, there is a high standard of tribute acts these days that have proven themselves to be entertaining and talented, with renditions that give you that warm, comforting feeling of nostalgia. In this hour-long special, five of the world’s top tribute artists perform the beloved songs of music legends Whitney Houston, George Michael, Little Mix, Amy Winehouse and Bruno Mars - as well as performing some unique and surprising duets and collaborations. At the end of the show, the live studio audience votes for their favourite performer. Paddy McGuinness hosts.