Mumford & Sons, Primal Scream and Fun Lovin’ Criminals are the latest big names to be added to the Arthur’s Day line-up, which takes place in venues nationwide on September 27th. This year, entry to all gigs is free, although the programme for each venue will be kept a surprise. Example, Tinie Tempah, Fatboy Slim, Texas, and Ellie Goulding are among the names already announced.