The 20-year-old singer joined Gary Barlow, Tulisa and Louis Walsh on the panel when auditions hit London in May.
Speaking ahead of her stint airing on the telly next month, Rita described her time on the show as "surreal".
She told DigitalSpy last week: "It was surreal, but incredible. I've been watching it on TV for so long and now I'm sitting on the panel two singles deep - it's definitely a statement."
The R.I.P. singer explained: "I felt like it was my moment to help anyone who would take it. I wasn't there to judge, I just wanted to enjoy people's imaginations and creativity and try and direct it in the right way."
And Rita said she was able to relate to the contestants who took to the stage at London's O2 Arena.
The London performer said: "I'm in the same boat as them. I'm only a 20-year-old artist, two singles deep and so I know how important it is to make a first impression on someone.
"I've never really understood just how important that is, but they just walked on and wanted to make an impression on the four judges.
"I walked into the Roc Nation offices wanting to make a big impression on Jay-Z and so I can relate to them."