Britain's Got Talent returns to the UK screens this Saturday and promises to be the wackiest series so far.From a man impersonating trucks to a guy who carves faces out of melons, this year's auditions have been so crazy that judge Amanda Holden has even suggested the show be renamed 'Britain's Got Self-Belief'.Hosted by Ant and Dec, the fifth series will see two new judges, comedian Michael McIntyre and David Hasselhoff, join Amanda on the judging panel with viewers being treated to guest appearances from Louis Walsh and Simon Cowell.[gallery order="DESC" columns="4"]