COME 10.31am this Wednesday, music fans will either be astounded by news of a huge pop-band reunion - or be left feeling cruelly deflated by PR hype.

Music PR company MBC, whose client roster includes Madonna, Kasabian, Rod Stewart, Keith Richards, Robert Plant and Stereophonics, have prompted much intrigue with this announcement to the music press: "Pop band reunion - press conference. Ham Yard Hotel, 1 Ham Yard, London, United Kingdom, W1D 7DT. Major announcement for 'the biggest reunion in pop'."

The event, which begins at 10.30am, will be hosted by Emma Willis.

Despite numerous candidates being suggested on Twitter - Talking Heads? Spice Girls? ABBA? Take That? Um, even Bros - no-one, including the Sunday Herald, is any the wiser. As ever, that hasn't stopped us from indulging in our own baseless speculation.

SIMON AND GARFUNKEL

PAUL and Art split acrimoniously in 1970 and despite a couple of reunions have not played or sung together in public since 2010. In May last year Garfunkel spoke of Simon having a Napoleonic complex and suppressing Garfunkel's creativity. "Will I do another tour with Paul? Well, that's quite doable. As far as this half is concerned, why not? But I've been in that same place for decades. This is where I was in 1971," he said, before "addressing" Simon: "How can you walk away from this lucky place on top of the world, Paul? What's going on with you, you idiot? How could you let that go, jerk?" However, Paul Simon, said in April 2016 that another performance with Artie is “out of the question."

OASIS

A FLURRY of curt little words studded with asterisks makes up a decent part of any public exchanges between the feuding Gallagher brothers, Liam and Noel. Noel quit the band in 2009, and he and Liam went their own musical ways. Liam, however, told Q Magazine last month: "I believe Oasis will sail again and that it'll be glorious ... One year. A tour for a year. We'd smash it." Some bookies are slashing the odds on Oasis re-uniting for a tour next year.

LED ZEPPELIN

BEST not to hold your breath on this one. The band, once the biggest in the world, played a one-off charity gig at London's O2 Arena in December 2007, with drummer Jason Bonham standing in for his dad John, who died in 1980. Online requests for tickets exceeded 20 million. But singer Robert Plant has frequently spoken of his lack of interest in a reunion, to the frustration of Jimmy Page, the band's guitarist. Were a reunion tour to be announced, against all the odds, tickets would be snapped up faster than you could hum the opening to Stairway to Heaven.

ABBA

The Sunday Herald is praying Abba will be the band reforming (at least that's what the editor told me to write). It was in December 1982 that Agnetha Fältskog, Björn Ulvaeus, Benny Andersson and Anni-Frid Lyngstad called time on one of the most commercially successful pop groups ever, to the disappointment of millions of fans who adored their music. In June this year, however, they performed on stage together for the first time since then, at a private function in Stockholm. But the band has been pretty emphatic about the odds against a reunion actually happening. And a few years ago they rejected a rumoured $1bn (£690 million) offer.

SPICE GIRLS

Three of the original five SGs - Geri (Ginger Spice), Mel B (Scary) and Emma B (Baby) - are reportedly discussing plans for a 21st anniversary reunion tour. But Victoria Beckham (Posh), has declined, as has Mel C (Sporty), who declared in an interview last month: "It just didn't feel right to go back. I loved what we did as the Spice Girls .... We had one reunion [in 2007] and I didn't want to do that. But I was talked round and it was the right thing to do, we had a great time and then we played at the closing ceremony for the Olympics in 2012. That to me was where [the group] should have been laid to rest. Sometimes you just have to say no."

THE SMITHS

THE indie miserablists broke up in 1987 and have rejected a number of highly lucrative offers to reunite. It's a question asked of singer Morrissey or guitarist Johnny Marr every time they are interviewed. Morrissey in particular is (caustically) adamant that it will never happen. Still, we can but dream (the editor also told me to write that).

WHAM!

A NUMBER of hints have been dropped over recent years that George Michael might reform the 80s popsters with Andrew Ridgeley. The duo staged an emotional split at a final concert at Wembley Stadium, in 1986, after selling more than 25 million albums and 15 million singles: the hits included I'm Your Man and Wake Me Up Before You Go-Go. Two years ago, Michael acknowledged that one of his biggest regrets had been “Splitting Wham!"

BROS

A TWITTER image apparently related to Wednesday's announcement, showing two blokes (one of them with a hat) in silhouette, has led to speculation that Bros are getting back together after 24 years. Twins Luke and Matt Goss, who celebrated their 48th birthdays last Thursday, had several hits, including When Will I Be Famous? before splitting in 1992. Matt has continued as a singer; Luke is more of an actor. If it is Bros the world may collapse under the weight of our collective disappointed expectations.

ONE DIRECTION

NOT, technically, a band that has split, but still ... 1D announced an indefinite hiatus in August 2015, and their vast army of fans (there are 30 million followers on Twitter alone) are eager for any news of the group. Zayn Malik left in March 2015, reducing 1D to a four-piece. Niall Horan has just told SiriusXM Hits 1: "Yeah, for the foreseeable, you know, we're just taking a break and kind of doing our own thing." In terms of a possible reunion, he added: “I definitely won't rule that out because it's the best thing… Our lives wouldn't be the same."

THE CHEEKY GIRLS

(That's enough reunions - Editor).