It was a Spice Girl reunion in London on Tuesday when Melanie Brown, Victoria Beckham, Emma Bunton, Geri Halliwell, and Melanie Chisholm came together to drum up interest in "Viva Forever," an upcoming musical based on the hit songs of the '90s girl group.

The event took place at St. Pancras Renaissance London Hotel, where the Spice Girls filmed their music video for "Wannabe" back in 1996. The women looked better than ever as they gathered to talk about "Viva Forever," which will be produced by Judy Craymer, the mastermind behind the ABBA musical, "Mamma Mia!" The show centers around four women whose friendship is put to the test when their band competes on a TV talent-competition show. The musical, which opens this fall, will feature hit songs made famous by the Spice Girls, who sold 75 million records around the world.

"They sing it better than us," Melanie Brown, better known as Scary Spice, told the Associated Press, referring to the cast of the musical.

The Spice Girls formed in 1994 and shot to fame two years later when they released their debut single, "Wannabe." Some of their other hit songs include "Say You'll Be There," "Spice Up Your Life," and "Viva Forever," which was the inspiration for the name of the musical.  Halliwell left the group in 1998, and while the remaining four continued to make music together, they called it quits in 2000. This is the first Spice Girls appearance since they all participated in a reunion tour in 2007 and 2008.

After the event, Beckham — who is now based in Los Angeles where her husband, David, plays soccer for the L.A. Galaxy  — immediately headed back to the States, but the Spice Girls were on her mind. "On my way home!! Thank you @MelanieCmusic @OfficialMelB @EmmaBunton @GeriHalliwell for an amazing day!! "

"Viva Forever" begins previews in November, then opens at London's Piccadilly Theatre on December 11.