Kelly Osbourne blasts "spineless" Dannii

Rex Features

Kelly Osbourne has claimed that Dannii Minogue is "spineless" after she criticised her mother Sharon in the press.

Minogue has spoken openly in recent months about her experience with Sharon Osbourne on last year's X Factor. Discussing their rivalry in March, before Sharon quit the show, Dannii claimed that she had been bullied by the TV personality. More recently, she has suggested that Osbourne and Louis Walsh made her first year on the ITV1 talent series "as difficult as possible".

In a new interview, Sharon's daughter Kelly has criticised the Aussie singer for not confronting her fellow judge at the time.

"Dannii is spineless really. She said nothing to my mum's face and even gave her an end-of-series gift," Kelly explained. "If she does not stop bad-mouthing her she will have me to contend with."

Minogue is currently filming the fifth X Factor series with Walsh, Simon Cowell and new judge Cheryl Cole.