Ellie Simmonds and Rebecca Adlington also take part in a weekend of events.
Videos tagged 'David Walliams'
David Walliams takes part in the SwimBritain challenge Britain’s Got Talent episode 1 preview clip Britain's Got Talent - Simon Cowell, Ant & Dec chat to Digital Spy
Digital Spy auditions for Britain's Got Talent Mulhern: Walliams is "like a lapdog that won't stop" Simon Cowell on why Britain's Got Talent is "better looking" than The Voice
Michael McIntyre and David Walliams react to Amada Holden giving birth David Walliams: 'Friends ask me if Simon Cowell is gay' Britain's Got Talent judges on Simon Cowell's return to the show