Liam’s here. Bonehead’s here. The class of 1994 are here – those who were knocking about that heady summer to witness the drip feed of the singles – ‘Supersonic’, ‘Shakermaker’, ‘Live Forever’ – that heralded a seismic shift in the culture. The class of 2014 are also here – those who came to Oasis through Liam’s solo records – As You Were; Why Me? Why Not & C’mon You Know. Hell, the class of 2024 are even here – a kid of no more than ten swaggering past resplendent in Reni hat, Oasis t-shirt, baggie jeans and suede loafers.

There’s even a serious whiff of an Oasis reunion doing the media rounds, but then again, there’s always a serious whiff of an Oasis reunion doing the media rounds. Anyway, point being - the stage is perfectly set for the first date of two at the 3 Arena of Liam’s Definitely Maybe 30th Anniversary tour (there’ll be further Ireland dates in Belfast and Limerick in July). And the stage is literally set too - bedecked as it is in a heap of menagerie that featured on Michael Spencer Jones’ iconic Definitely Maybe album sleeve. The actual stage is covered in wooden flooring; there be palm trees and a pair of giant flamingos; a huge television sits on the ground, flickering to life with Eli Wallach and thirstiest man in the world Antonio Casale in Sergio Leone’s The Good, The Bad and the Ugly; there’s a huge image of Noel’s idol Burt Bacharach and a graphic of Man City’s Rodney Marsh is floating around, so too is Man U’s Georgie Best.

Liam Gallagher at 3Arena Shot by Patricia Rosingana (xbadbon)

A massive clock counts down from 2024 to 1994, soundtracked with Slade, Stones, Undertones, The Jam and finally The Stone Roses’ 'I Am the Resurrection' – everyone on the floor and balcony – sing it, arms splayed, chests out, transforming the anticipatory arena into the roar of a football terrace. The screen goes all fuzzy and retro; footage of Oasis beams and audio of Liam harks the band’s stroll on, followed by the arrival of the main man to the mic, wielding maracas. Into ‘Rock ‘n’ Roll Star’ we plunge, there’s a smell of strong ganja, beers are pasted across the hall – everyone is moving, there ain’t nobody sitting down.

The band possess serious beef – fourteen in total when you include the string quartet that appears for ‘Half The World Away’, ‘Whatever’ and ‘I Am the Walrus’ – seven musicians, including a pumped up trio of guitars and three backing singers. They bring all that weight to Bonehead favourite ‘Colombia’, Liam informing us that it’s the birthday today of the man known to his family as Paul Arthurs - the man who’s breathed Oasis more than anyone that isn’t named Gallagher, will doubtless be doubly happy.

Liam oozes ‘Shakermaker’ – anorak, maracas, legs planted, body back, head forward – in that stance that has been endlessly copied, but never equalled. He introduces ‘Up In the Sky’, likening Dublin to Barbados - it is a 25 scorching degrees on the quays – the crowd are a mass of springing, bouncing bodies – everyone is feeling damn good. The graphics on two giant screens split by a slowly revolving globe are reminiscent of late-night shows and music channels that you’d get into when coming in from a late night in the mid-90s, which is mega. For ‘Digsy’s Dinner’, the man himself, the inspiration of the song, Peter Deary finds himself in the bizarre BBC TV test card that told you TV was over for the night and to get yourself to bed.

Liam Gallagher at 3Arena Shot by Patricia Rosingana (xbadbon)

Thirty minutes have clicked by in a blink. Liam decides to go deep, five-mile deep into the Definitely Maybe catalogue – ‘Live Forever’ B-Side ‘Cloudburst’, ‘Supersonic’ B-Side ‘I Will Believe’ – the audience takes a breath, before Liam decicates one of the greatest B-Side’s of all time – ‘Half the World Away’ to his grandma, whilst blessing himself. The fact that it was a B-Side captures just how absolutely towering Oasis were in their heyday and its plaintive wanderlust perhaps also captures the gulf to Noel tonight, but enough of that! The room sparkles under the lights of a thousand phones and with the string quartet playing underneath palm trees – all is wonderfully calm – and the reflective refrain – “No, I don’t feel down” is as powerfully idealistic as ever.

“Hands up for who is still on the glue?” Liam asks, “this one’s for the space cadets then” and prangs into ‘D’Yer Wanna Be A Spaceman’, an Oasis lullaby as rare as a hen’s tooth. Liam continues to mine the record’s catalogue - ‘Fade Away’ gushes through glorious feedback into oblique and mighty punky pub rocker ‘Lock All The Doors’ for your 24 carat dedicated Oasis fan. ‘(It’s Good) To Be Free is followed by its mammoth A-Side ‘Whatever’ before ‘Cigarettes & Alcohol’ rolls over us like a damn juggernaut, the crowd roaring “You gotta make it happen!” Liam ends the set as the album ended, with ‘Married With Children’ – singing “goodbye I’m going home” and a coda of Ringo’s ‘Octopus’s Garden’, followed by maracas drop.

The encore kicks off with a loop of THAT opening drumbeat, it’s followed by THAT riff and the crowd bellow welcome to ‘Supersonic’ - the band stroll back on, Liam in deerstalker hat and away we go. They one-two is with the pair of gigantic singles that did more to get a generation up off their arses than pretty much anything else – ‘Slide Away’ and ‘Live Forever’ – oh man, the mighty utopianism of them still glows like a supernova. Liam touches his heart to the hordes singing back every word whilst giant images of Elvis & Jimi, Sid Vicious & Bon Scott; Curtis & Brian Jones; Marley & Lennon beam down on us from the screens. We finish with ‘I Am the Walrus’, Liam steely standing stationary, fist to chest, centred in the magnificent psychedelic haze and whirl of it of it all.

Guess now we wait to see what’s the plot for next year’s 3oth anniversary celebrations of (What’s the Story) Morning Glory? – time enough.

• Liam Gallagher plays Limerick's Thomond Park on July 14. Click here for more info.