An episode featuring some of history's finest songs (from the series, admittedly), as Rattus attempts to put together his own festival (the delightfully-named "Glastonsmelly"). From singing poos to tuneful Warlords, there's something for all musical tastes! Rattus has somehow also roped Brad from The Vamps in to help him out, although rather than playing live on the main stage, Brad's role seems to be more about unblocking the toilets just behind it...