It’s no secret that insanely successful comic book and TV show The Walking Dead is as grim as a night in McDonald’s with Morrissey. The relentlessly bleak tale yields few chuckles, which actually makes this mash-up of TWD’s teenage tearaway Carl lip-syncing to a pop song (while his dad Rick lies in a bloody mess) even more giggle-some. Keeps your eyes peeled for the zombie backing singers...