Mel B has prompted speculation that she could bring in former bandmate Victoria Beckham as her guest judge on The X Factor.
The 39-year-old tweeted an old picture of the Spice Girls pairing - then Scary and Posh - wearing suits, with the caption: "Watch out we mean business."
And the Daily Star said that the tweet sparked speculation that Victoria would be joining Mel in the judges' houses stages of the competition on the TV show.
Singer turned fashion designer Victoria has appeared as a guest judge on Project Runway but critics were unimpressed with her American Idol judging appearance in 2010.
Meanwhile, fellow judge Cheryl Cole told Star magazine that she was enjoying working with fiery Mel.
"I admit we are very different characters, but it works. She's hilarious," Cheryl said. " She's very direct. I couldn't bring myself to say a lot of the stuff she says."