Sporty, Scary, Ginger and Baby, let's give them their proper titles - spoke about their comeback on Heart Breakfast, the radio show now presented by Bunton alongside Jamie Theakston.
Putting up a fight!
Speaking about reuniting without Posh, Mel C said: "It is tough because obviously she's a huge part of the band - she still is. there were times when I was unsure [about reuniting], and we really support each other and the decisions we make".
Mel B said Posh would be joining the girls for their Wembley date, to which the girls laughed.
The Hello singer took to Instagram on Monday to share her excitement about the Spice Girls' highly anticipated 2019 tour.
At least 14 killed in China highway pile-up
The accidents follow a dramatic bus crash on October 28 in southwestern China that killed 15 people. Local authorities have demanded that risky sections of expressways across the province be examined.
"Being in the Spice Girls was a hugely important part of my life and I wish my girls so much love and fun as they go back on tour", Victoria wrote. I know they will put on an awesome show and the fantastic fans past and present are going to have a wonderful time!
It wasn't the only moment Mel raised eyebrows in today's Heart interview, as she was also accused of "fibbing" by her band mates when she claimed the group were planning to record new material.
The girls added that not taking part puts Posh in a very unique position: "She is very excited for us, and it's going to be unusual". Tickets go on sale this weekend, and we're told the crew is nervous they won't sell out since Victoria Beckham isn't going along for the ride.
Mel B added: "We got together for the fans".
"I was at a gig and I was on my way out, getting in to my auto".