Although it hasn't been confirmed that Victoria Beckham and her Spice Girls bandmates Emma Bunton, Mel B, Mel C and Geri Halliwell will be back together again for the launch on Tuesday, VB has done everything she can to tease us.
The singer turned fashionista took to Twitter yesterday to announce she was London bound tweeting: "Excited to be travelling to London tomorrow!!! packing!!!! x vb"
And she tantalised us further by referencing a "big event" next week. She posted: "Big event next week, what should I wear?? X vb" with a picture of two different outfits.
The musical, which is produced by Mamma Mia's Judy Craymer, will premiere on Tuesday at London's Piccadilly Theatre.
Earlier this morning fellow Spice Girl Emma Bunton, who recently fractured her ankle, also alluded to the fact she'd be attending the show's launch this week.
She tweeted: "I'm fed up with this massive foot brace, I need to get back into my heels for a special day next week!!!!!"
[Related story: Emma Bunton fractures ankle in killer heels]
[Related story: Mel B gets booed at X Factor auditions]
And last week Mel B got us even more excited about by posting this message: "i will always always be up for a spice girls reunion,i just love my girls!!! spice girls FOREVER"
And Geri Halliwell, who was the last of the five to join Twitter, posted "Hi #spicegirls @EmmaBunton @MelanieCmusic @OfficialMelB @victoriabeckham Finally i'm here, I can't wait to see you. Much Love, Geri xx"
The show will feature an array of the girls' hits including 'Wannabe' 'Who Do You Think You Are' 'The Lady Is A Vamp' and 'Mamma'.
We. Can't. Wait.