Stephen Mulhern loves catching up with Ant and Dec backstage. Hi guys! See more from Britains Got Talent at SUBSCRIBE: .\r<br>\r<br>Have you ever seen Stephen Mulhern, Ant McPartlin and Leonardo DiCaprio in the same room? No? Find out why.\r<br>\r<br>\r<br>\r<br>BGMTs Stephen Mulhern finds out how hard it is to master a canine trick. See more from Britains Got Talent at SUBSCRIBE: .\r<br>\r<br>See more from Britains Got Talent at Its live so anything can happen but host Stephen Mulhern has given us the scoop on what to expect .
