Mel B has revealed that she wants Katy Perry to replace Victoria Beckham on the Spice Girls tour during an appearance on Thursday's episode of The Late Late Show With James Corden.

The Spice Up Your Life singer, 43, also used the CBS chat show to insist that the tour is "100 per cent" happening with or without the fashion mogul, 44.

During the appearance, her fellow guest, Olivia Munn, jokingly suggested that the girl group should have different celebrities replacing Victoria, reports Daily Mail.

To which Mel said: "Katy Perry would be good, wouldn't she."

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The America's Got Talent judge also went on to reveal about the tour: "100 percent it's happening," while she added that three other band members are "for sure" joining her back on stage.

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Emma Bunton, Mel C and Geri Halliwell are all set to return, but when asked on whether David Beckham's wife would be joining them, Mel B replied: "Well, we'll see about that one."

Mel revealed that the successful fashion designer might join the group on a few select shows.

If the girls finally do decide to fill arenas once more, it will be their first tour since their 2007 Viva Forever reunion.

The band last performed together at the opening ceremonies of the London Olympics in 2012.

Since then Posh Spice has repeatedly shot down reports that the popular group would be reuniting.

"I'm not going on tour," Victoria told Vogue earlier this year. "What does that look like in the future? It's not me in a catsuit."

In contrast, Mel B is wildly enthusiastically about her old costumes, having built a shrine in her bedroom to honour her Spice Girls days.

"I couldn't leave all my Spice Girls clothing in a box," she said on the show.

"It sounds real self-involved, but I'm actually real proud of what us five girls accomplished.

"So I've got it in my bedroom in the corner. When my friends come over we play dress up."