The Spice Girls turned down the chance to perform with Adele on their reunion tour - because they didn't want to be upstaged.
The 'Stop' hitmakers - who got back together without Victoria Beckham for a string of stadium dates over the summer - could have had the 'Skyfall' singer on stage with them for the final night of their concert series at London's Wembley Stadium in June, but opted out of the duet as they were afraid their vocals wouldn't match up to those of their biggest fan, who instead watched from the audience.
Mel C admitted: "I heard a rumour that she did want to come up and do '2 Become 1'. But we said no because, who wants to sing with Adele?"
The 'Wannabe' group - which also features Geri Horner, Mel B, and Emma Bunton - haven't announced any further dates since the tour wrapped in June but Mel revealed they are hopeful they'll be off around the world in the future.
She told The Sun newspaper's Bizarre column: "I'd love to do more shows. It was so loved by so many people and we have fans all over the world.
"And we have fans we have never gone to, whether it be in South East Asia, South America or even Australia."
The 'High Heels' singer understood why fashion designer Victoria had opted out of the reunion because she was "very nervous" when the group briefly reconciled to perform at the London 2012 Olympics closing ceremony.
She said: "Victoria s**t herself when we did it, not literally, but she was very nervous when we were at the Olympic Stadium. And you know what? It's completely understandable. Her life has changed so much and she has worked so hard.
"She's at the top of her game in a very different industry and for her to come back to performing, she was petrified.
"I think if the nerves are that uncomfortable and it kind of outweighs the joy that you get from the performance, then I understand."
However, she thinks her pal would get back on board if the group were offered a slot at the world-famous Glastonbury festival.
Mel said: "She f***ing would. She would. She'd love to do Glastonbury. The truth behind the rumour is we've never even been approached."