Tulisa Contostavlos's ex-boyfriend is working with a singer who was axed from The X Factor, according to reports.
Viewers saw trio MK1 being told on Sunday's show that they should lose singer Will Baker if they wanted to progress in the show.
It has now emerged that Will is friends with MC Ultra, real name Justin Edwards, who leaked Tulisa's sex tape earlier this year.
"Justin has been booked into Will's studio to record over the next few weeks," a source told the Daily Mirror.
"Tulisa wouldn't have known about it at the time of X Factor filming."
Tulisa criticised Baker's performance when MK1 performed Professor Green's Read All About It.
She told them: "The good news is, that's rap. The bad news is you're either going to have to become a duo, or get a new member."
In July, Tulisa said her ex-boyfriend Justin had "messed with the wrong woman" after winning an apology from him over the sex tape which ended up online.