See more from Britains Got Talent at David does his best to outdo a Belgian Shepherd in a bit of name-dropping but can he beat him in an .\rbr\rbr\rbr\rbrWho knew David Walliams could be such a diva? Turns out the BGT Judge has a rider agreement to rival J-Lo, and then some! Davids dressing room list is .\rbr\rbrBritains Got Talent 2015 Auditions | Audition Week 1 | Britains Got Talent 2015 BGT - Britains Got Talent 2015 - Episode 2 - The Auditions.