Jonathan Ross is joined by Peep Show and Would I Lie to You? star David Mitchell; the breakthrough athlete of 2018 and fastest woman in Britain, sprinter Dina Asher-Smith; multi-platinum selling singer and heart-throb Josh Groban; and the irrepressible and unpredictable Keith Lemon. Plus, multi award-winning musician Hozier will be performing for the first time on British TV since 2015.