Yep, this is a thing that's actually happening. And the London date hits The O2 on Valentine's Day 2015!
Speaking of the tour, You Me At Six's Josh Franceschi says: “We can’t wait to hit the road with All Time Low. It’s the tour we know our fans want, and we are so excited to be doing a full arena tour.”
While All Time Low's Alex Gaskarth says: "we've never managed to hit up the UK with the hometown boys in You Me At Six, so this is going to be a really amazing experience. I think the fan-bases will come together and make the show unforgettable."