Spice Girls Reunite, Announce Tour

Prepare yourselves for a Girl Power overload!

The Spice Girls officially announced on Thursday that all five original members -- Melanie "Sporty Spice" Chisholm, 33, Emma "Baby Spice" Bunton 32, and Melanie "Scary Spice" Brown, 32, Geri "Ginger Spice" Halliwell, 34, and 33-year-old Victoria "Posh Spice" Beckham -– will reunite for 11 concerts around the world in December and January.

The shows will be their first concerts since breaking up in 2001. How does it feel being back together?

"Imagine you got divorced and you've got back together with your ex-husband," said Halliwell, who quit the group to pursue a solo career in 1998.

"She just appreciates the fact we've let her back in," joked Beckham.