The Spice Girls will reunite in London this week for the first time since their reunion tour in 2008, to launch their musical Viva Forever.

The five members are expected to hold a photocall and press conference for their musical on Tuesday in London. The musical, which is produced by Mamma Mia's Judy Craymer and written with comedienne Jennifer Saunders, is set to open in December.

The women have all teased a 'big event' which is taking place this week on their official Twitter pages. Both Victoria Beckham and Emma Bunton wrote about their excitement for a 'big event', with Victoria asking her followers to choose an outfit for her.

The singer and fashion designer will travel today from L.A. to the English capital and added 'Travelling to London today!! Song of the day "Spice Up Your Life"!! x vb'

Bunton, who recently fractured her ankle, posted 'I'm fed up with this massive foot brace, I need to get back into my heels for a special day next week!!!!!' before writing to Melanie C, saying 'have an amazing day gorgeous and I'll see you next week!!!'

Mel B exclaimed 'packing for uk right now,soooo exciting!!!'.

The musical, which is co-produced by the group's former manager, Simon Fuller, follows the story of a mother and daughter, using a TV talent show as a backdrop, set to the iconic music of the girl band.