It’s looking like the Spice Girls are planning to reform for a brand new television special and compilation album next year.

According to an insider, all five of the girls – yep, that includes Victoria Beckham – have agreed to take part in the comeback, after Melanie C launched a campaign to get them all together again.

“The five of them have been locked in secret talks since the summer, and finally they are all on-board for a 2018 reunion,” a source told The Sun.

“As it stands, they will be working together on a series of projects, which will include an album and a TV special celebrating the Spice Girls.

“And getting Victoria to agree has been a coup for everyone involved, given she has always been the person holding back on a reunion.

“The fact she is on board now is down to how much closer the five of them have become recently.”

Related: Melanie C’s new music video features a special appearance from the Spice Girls!

What’s more, their former boss Simon Fuller is back on board to head up the reunion plans.

“Things between them were quite icy at the start of the year,” the insider added.

“But gradually the ice thawed, and Mel was the one who drove that. Mel’s divorce battle also helped to bring them back together, as did the birth of Geri’s son.

“Plans at the moment are still in the early stages, and everything involving the girls tends to be complicated because they are so busy.

“It is not easy to get them all in the same place at the same time.

“But the team behind the reunion are delighted to have made it to this point.”

Next year will mark 20 years since Geri Horner first left the group in May, 1998.

It will also mark the 20th anniversary of their singles Stop and Viva Forever, as well as their iconic ballad Goodbye.

Meanwhile, Melanie C recently told Gay Times that the girls have discussed riving their West End musical Viva Forever as a touring show.

Related: Lady Gaga and Emma Bunton perform snippet of iconic Spice Girls song