Spice Girls star Mel B has confirmed the group's reunion will take place this year.
The singer, whose real name is Melanie Brown, said there is one member of the girl group who has been holding up proceedings.
When asked if all the band would be involved, she told ITV's Loose Women: "There's one that's been a bit difficult. But she's getting roped in."
Pressed if it will happen this year, she said: "Yes, yes. We are going to start this year and then go on until next year."
Earlier this year, the singers confirmed plans to work together on new projects, sharing a snap of themselves at Geri Horner's house.
However, Victoria Beckham later denied that they were going on tour.
Mel B previously told the show: "All five of us have signed with Simon Fuller... It's all very exciting. It's going to be a bit of everything. If it was up to me, we'd go on tour immediately. Maybe we will soon... Hopefully."
The former X Factor judge said: "I've always said we're definitely touring. I think I've just been nagging them all a bit too much. I stopped nagging and then they all said 'yes'. I shut my mouth."
The singer said the death of her father allowed her family to put aside a rift that had kept them apart for over eight years. She reunited with her mother and sister last year while her father was in hospital battling cancer. She said: "It was about eight years that I didn't speak to them. It was heartbreaking.
"I was actually married and I was in an isolated, stressful kind of relationship, which prevented me from even reaching out to my family.
"When my dad died - God bless his soul - that brought my family together."