What shop in leeds centre do you queue outside overnight to get leeds fest tickets?

Me and my friends are planning on going to leeds fest this year. The only problem is getting tickets. We want to get them together which makes buying them online an issue. Is there a shop you can queue like over night or something that sells them? We live in leeds so getting to town isn't a problem. I've heard they come on sale on 29th March at 6:45pm.