Beady Eye.

Being here now: Beady Eye joined the Big Day Out tour after Blur dramatically pulled out.

You can only picture the smile that must have spread across Liam Gallagher's face. One minute he was rehearsing with Beady Eye, the band he formed with fellow erstwhile Oasis members Gem Archer, Andy Bell and Chris Sharrock, after big brother Noel took his bat and ball and went home in 2009. The next, Beady Eye were being asked to help save the Big Day Out after Oasis' one-time Britpop nemesis Blur had pulled out.

As it happens, that wasn't exactly how the band saw it go down. ''Blur never came into it,'' Archer says. ''Someone said, 'What about going to Australia?' and we all went, 'Yes'.''

But you can bet Liam had a smirk to himself when he did find out.

Anger: Liam Gallagher.

Anger: Liam Gallagher.

The younger Gallagher has been laughing all the way to the bank, countless magazine covers and the top of many a chart ever since Noel, with his then seemingly endless arsenal of swaggering rock'n'roll anthems, took charge of Liam's fledgling outfit and transformed it by the mid-1990s into the Oasis millions know and love.

Yet when Noel walked out on their final incarnation five years ago, he must have known any future project of his would pale in comparison with Oasis for one key reason. He may have been the one with the tried and tested songwriting talent but Liam was the truly irreplaceable one, thanks to his rare combination of charisma, attitude and (not always, but often) vocal heroics.

''Liam's stage vibe is definitely based on an antagonistic sort of vibe,'' says Bell, who switched from playing bass for Oasis to guitar for Beady Eye. ''There's an anger to him on stage, which makes him a great frontman.''

Fellow Beady Eye guitarist Archer describes Liam as ''fearless with how he approaches any night''.

It is why the average Britpop fan who didn't demand a Blur-related refund for the Big Day Out will want at least to have a quick look at Beady Eye's set. Well, that and the fact that, now they have established themselves with two albums of their own - 2011's occasionally exhilarating Different Gear, Still Speeding and last year's improved and more adventurous follow-up BE - they are open to playing Oasis songs.

''I have a feeling people are just going, 'F--- Beady Eye, we want Oasis back','' Liam told NME in June. ''I feel sometimes people are boycotting Beady Eye because they think the quicker I get the needle with it, the sooner I'll be going round knocking on Noel's door. They've got it all wrong.''

''It felt like a natural thing to do,'' Bell says. ''From the beginning we kinda had a word with ourselves and said, 'Well, if we do that [play Oasis songs] right off the bat, this is gonna be seen as kinda not separate enough from Oasis'.

''We've thrown a couple in now because … it's not like we've become massive all around the world as Beady Eye. We're getting there, but I think a lot of people that come to see us do wanna hear Oasis songs. We think if we give them a couple of treats, y'know, they'll keep listening to Beady Eye.''

Still, hard acts to follow don't come much more difficult than Oasis. You can't help but wonder why the four members other than Noel decided to continue together in what was inevitably going to be a similar vein but without the skills of their principal songwriter.

''The '09 Oasis tour, which ended up with us breaking up, was the best we ever sounded live,'' Bell explains. ''We basically wanted to preserve that kind of inter-band chemistry.

''Obviously Noel was gone, so there was a big part missing, but the rest of us were still on that stage and we wanted to keep that same musical feeling. There was no, like, 'Let's change anything'. It was just forward momentum - 'Let's keep going' - which powered us through the first album.''

Do Beady Eye perhaps feel like they have something to prove? ''No … we're still driven to make music,'' Bell says. ''It's not about proving, really. It's more just about having that drive to keep on playing.

"You always want more, you always want to be bigger, you always do want that top spot but you've gotta be realistic sometimes. And if it ain't happening, then is it really the end of the world? I don't think so. It's still good to be playing music. It's still good to be, y'know, earning a living from it.''

There is, of course, one way that they could all earn a lot of money playing music and make a lot of people very happy: by getting Oasis back together. But this won't happen until the Gallagher brothers start talking to each other again and Bell can't confirm if there is any truth to a recent rumour that they are doing so.

''I haven't heard anything about that, but if that's the case then that's great,'' he says. ''I'd be happy if they did bury the hatchet - y'know, just on a personal level it'd be a good thing.''

''There's unfinished business there,'' Liam told NME. ''People ask would I get Oasis back together. I'd do it for nowt. But if someone's going to drop a load of f---ing money, I'd do it for that, too.''

- with Peter Vincent

Beady Eye play the Big Day Out, Flemington Racecouse, today and in Sydney on Sunday.


HARD ACT TO FOLLOW

We're not talking about artists going solo or side-project splinter groups - here are five more bands for whom the end of a brilliant outfit didn't mean they couldn't achieve great things with a new one.

WINGS

How do you follow a band as universally popular, influential and infamous as the Beatles? Certainly not by drafting in your wife of limited musical ability and various mates answering to the name ''Denny'', you'd imagine. Yet that's what Paul McCartney did, resulting in a group described by Steve Coogan's genius comic creation Alan Partridge as ''the band the Beatles could have been''. Laugh we may, but Wings' enormous sales suggest Partridge might have a case.

NEW ORDER

It emphatically spelt the end of Joy Division when Ian Curtis took his own life in 1980, so few could have anticipated how far, let alone in which direction, the remaining three would go. Yet with keyboard recruit Gillian Gilbert rounding out the line-up of New Order, Bernard Sumner, Peter Hook and Stephen Morris found an alternative dance-rock sound often unrecognisable from Joy Division's post-punk stylings - and sold millions more records, to boot.

Wolf & Cub

FOO FIGHTERS

When the suicide of Kurt Cobain brought Nirvana to a harrowing conclusion in 1994, the surviving members chose to start new bands rather than twiddle their Teen Spirit-scented thumbs. Bassist Krist Novoselic's Sweet 75 barely made a dent in the public consciousness. Drummer Dave Grohl, on the other hand, led his multimillion-selling, award-winning, stadium-humping Foo Fighters to their current position as one of the world's biggest rock bands.

Wolf & Cub

NICK CAVE AND THE BAD SEEDS

The Birthday Party were one of the most exciting rock bands to come out of Melbourne in the late 1970s, what with frontman Nick Cave's enormous charisma (and, then, hair) and Rowland S. Howard's original, devastating guitar sound. When various members' drug use and inter-band tension spiralled out of control in 1983, Cave and fellow Party man Mick Harvey went off and formed the Bad Seeds who, as their double-winning success at last year's ARIAs attests, remain among Australia's finest.

PUBLIC IMAGE LTD

There was no way someone as smart as the original snot-nosed punk, Johnny Rotten, was going to use that sobriquet past its short use-by date, much less repeat himself creatively. So when the Sex Pistols inevitably imploded, not only did he revert to John Lydon, he formed a radically different, experimental act in Public Image Ltd. And while PiL may not have been anywhere near as notorious as the Pistols, they were certainly more musically fascinating.