Here's what we learned at the first of Panic! At The Disco's two huge London shows.
BRENDON URIE IS ONE OF THE WORLD'S GREAT SHOWMEN
When he's in full swing, there are few performers on Earth who come close. From death-defying backflips to a surprise drum-off during 'Crazy=Genius' - and that glass-shattering falsetto - Brendon unleashes his full box of tricks tonight.
He's part Rat Pack crooner, part champagne-toting host with the most, and every inch the icon; conducting the Panic! circus with unflappable assurance. Yet even in the cavernous confines of Ally Pally, he makes the whole thing seem like an authentic celebration. On that note....
THIS FEELS LIKE A HUGE PARTY
Instead of the sterile, telegraphed thrills of many bands' arena shows, Brendon brings a more personal charm to his latest extravaganza.
Whether exploding out of the gates with 'Don't Threaten Me With A Good Time', leading the crowd (and it's a big one, the room packed wall to wall) through a euphoric 'Golden Days', or getting everyone off their feet for 'Time To Dance', this feels like the party to end all - bathed in the glamour of art deco-style video projections.
Behind the soaring confetti streamers and blasts of CO2, there's a note of joyous escapism - the turmoil of the outside world left at the door. That's no insignificant thing in these dark times.
'BOHEMIAN RHAPSODY' IS A GREAT SONG
Yeah, okay, that's not much of a revelation - but Brendon and the lads really do justice to Queen's monumental opus. It's already become a staple of their sets, and when that riff kicks in it's easy to understand why. If Brian May ever needs to recruit someone new behind the mic, we know who we're nominating.
THE SETLIST IS TO DIE FOR...
There's something for Panic! fans of every persuasion here. A full brass section breathes new life into 'Nine In The Afternoon', the scream-along to 'Miss Jackson' is deafening, and - of course - 'I Write Sins Not Tragedies' goes down a storm.
Tonight serves as a reminder of everything Panic! has come to represent, brought right up to date. It worked at Slam Dunk Festival back in May, and it's just as winning tonight.
...BUT SONGS FROM 'DEATH OF A BACHELOR' HIT HARDEST
It's a serious credit to P!ATD's last man standing that - through all the triumphs and turbulence of the past 12 years - they've never sounded better.
In fact, songs from this year's 'Death Of A Bachelor' deliver many of the evening's high points; running from the devilish glee of 'Emperor's New Clothes' and soaring call-and-response of 'Hallelujah' to the title-track's swinging Frank Sinatra-isms.
Brendon looks to be having the time of his life right now (to be fair, when doesn't he?) and that means everyone goes away happy.
Seriously, look at it. What a time to be alive.
On the anniversary of the release of 'Death Of A Bachelor', take a trip intro the Rock Sound archives and to Brendon Urie's house to find out how Panic! At The Disco's latest (maybe greatest?) album came together.