They’re as surprised as anyone to be playing this sizeable venue (twice, no less – the second is on Sunday) but don’t let it show, musically speaking at least, over an hour-and-a-half so apocalyptically exciting that by the end of I Wanna Be Everybody fans are jumping off the balcony to join the mosh downstairs.

But the thrill is in the air from the moment Zach Stephenson unleashes that first satisfyingly crunchy riff. With Billy Fleming thrashing and crashing on his drums on the other side of the stage, the pair have the time of their lives.

They burn through everything from Can’t Have Them, one of many songs lifted by Stephenson’s evocative yearning vocals, to an electrifying Homely Feeling via an unexpected rush through a Britpop classic (Supergrass’s Alright, emphatically given the Hockey Dad treatment) and the odd token slower song (though even Danny can’t bring down the energy levels).

What’s more to like? Well, Fleming’s the kind of guy who overcomes technical difficulties by getting a roadie to gaffer-tape in his in-ear monitors and they’re the kind of band who get the crew to shoot T-shirts into the crowd, possibly just because they have a song called Raygun – so by a glorious Join the Club, the few in attendance who might not previously have been on board have undoubtedly signed up.

“I don’t wanna go home, I’m having too much fun,” sings Stephenson during Jump the Gun. We know exactly how he feels.