Kelly Osbourne isn't ready to replace her late co-star Joan Rivers on 'Fashion Police'.

The 30-year-old TV personality confessed she hasn't been able to grieve properly for the comedienne - who passed away following complications during throat surgery in September - and is angry that people show more concern for the future of the E! Series than her well being.

She said on the Today show this morning (10.11.14): ''I can't lie and say that I'm amazing. It's something, to be honest with you, I really don't like talking about because I haven't been able to mourn and grieve the way that I want to.

''Not one person that I have seen or walked up to me or spoken to since the day she passed has ... the first thing that comes out of their mouth is, 'Who's replacing Joan?'

''I have started to get to my angry phase. So, it's not been fun.''

When one of the NBC show's anchors, Al Roker, suggested that Joan - who passed away aged 81 - was irreplaceable, the star was overcome with emotion and asked to change the subject.

She said: ''Can we please move on so I don't cry on morning TV?''

Questions over who will replace Joan were sparked following the announcement that the show is set to continue without her in January.

A new season of popular style series - which Joan hosted for four years and is produced by her daughter, Melissa Rivers - will kick off in the new year and is expected to feature longtime co-hosts Giuliana Rancic, George Kotsiopoulos, a new acid-tongued fashion critic and Kelly herself.

A spokesperson previously said: ''We are deeply saddened by the loss of Joan Rivers and, for the last two weeks, have turned our attention to honoring her memory on all of our platforms. We have also thought long and hard about what Joan would have wanted as it pertains to the future of 'Fashion Police'.

''We decided, with Melissa Rivers' blessing, that Joan would have wanted the franchise to continue. 'Fashion Police' will return in 2015 commencing with Golden Globes coverage on Monday, January 12. No further details will be announced at this time.''