The former Spice Girl slipped into a very short, very slinky little dress a day of promotion for new messenger app PingTan on Tuesday, 31 March.
It came after the always inevitable rumours began about next year's X Factor judging panel...
First came reports that Louis Walsh's seat isn't safe anymore, then came claims that Cheryl Fernandez-Versini was in the danger zone. Then suggestions Robbie Williams could join the panel...
Every year, the same thing!
As always, bosses at X Factor have said the judging lineup won't be confirmed until nearer the time of filming, with a rep telling MailOnline:
"It's too early to confirm the judges for next year's series.Each year we look at all aspects of the show from the judges to the format but it is too early to say what on screen changes might be for this year. The judges are usually only ever signed up for one series at a time and we usually only start looking at the judging panel and confirming judges before we are due to film with them."
Last year, Mel judged alongside Louis, Cheryl and Simon Cowell.
X Factor's new series will air later in the year. Currently, it's at the open audition stages where hopefuls can perform for the chance to make it to judges' auditions.
X Factor's most shocking moments: