Melanie Chisholm is the sole stumbling block to a Spice Girls reunion, the group's former manager Simon Fuller has revealed.

The pop impresario has enlisted the help of former band members Emma Bunton and Geri Halliwell to persuade Chisholm to join the proposed reunion, which would comprise a six-month world tour.

He told The Daily Mail: "The only person showing any reluctance is Mel C. She thinks her solo career is bigger than the band, which is just not the case.

"She needs to wise up and realise a reunion would be amazing for everybody concerned. Emma and Geri are meeting her soon to discuss everything and convince her to finally sign a deal.

"The Spice Girls will come back with a big bang, they’ll do a whirlwind tour for six months and they’ll be gone again."

The Spice Girls were one of the most successful girl groups of all time, selling 53 million albums and scoring nine number one hits including 'Wannabe' and '2 Become 1'.