London (CNN) The Spice Girls have hinted that their sellout reunion tour will travel to Australia early next year, after Mel B made a surprise announcement during the group's final performance at London's Wembley Stadium Saturday evening.

"We'll see you in February in Australia," Mel B told the crowd. Details of live dates in Australia -- which would be the first time the group has performed in the country -- are yet to be officially announced.

Geri Horner, aka Ginger Spice, also surprised the crowd Saturday by apologizing for quitting the group in 1998.

"I need to say something I should have said a long time ago," she told the 70,000 fans at Wembley.

'I was being a brat' - Geri apologises for leaving the Spice Girls (in a way that connected with me, at least, more than ever) #spicegirls #spice #geri #icanbeabrattoo pic.twitter.com/0UPnshgC6F — Jamie Tabberer (@jamietabberer) June 15, 2019

"I'm sorry. I'm sorry I left. I was just being a brat. It is so good to be back with the girls that I love."

Read More