Let's Sing and Dance for Comic Relief Season 1 Episode 4 Episode 4 ( Air Date 2017-03-25 ) Genre Reality, Comedy category. Overview "It is the final, and six star acts who have been voted for by the public and the panel sing again, hoping to be crowned champion. The panel is made up of Rufus Hound, Katy Brand and Jason Manford, and there is music from Zara Larsson and Dua Lipa.".