The 'DNA' hitmakers and their fellow 'X Factor' contestants were told by the 'Diamonds' star's management team that they couldn't speak to her when she was a guest performer on the UK show last year.
Her bandmate Leigh-Anne Pinnock added: ''Her management wouldn't let anybody meet her, but she walked past me and said, 'Your hair is awesome!' This was when I had my head half shaved, which I hated, so it cheered me up.''
Jesy told this month's issue of We Love Pop magazine: ''We met Kylie at the BRITs. I kept looking at her bum because she's got a really nice bottom.''