Kelly Osbourne has a bone to pick with people following the death of her Fashion Police co-star and close friend Joan Rivers.

Since Rivers passed away at the age of 81 on September 4, a burning question on everyone's mind is whether Rivers will be replaced on Fashion Police.

"Not one person that I have seen, or [who has] walked up to me or spoken to me since the day she passed has -- the first thing that comes out of their mouth is 'Who's replacing Joan?'" Osbourne said during a Monday appearance on the Today show, Us Weekly reported.

"And I have actually started to enter my angry phase, so it's not been fun."

Osbourne has clearly had a tough time dealing with the loss of the famous comedian.

"I can't lie and say that I'm amazing," the former Dancing with the Stars contestant reportedly admitted. "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."

When Al Roker threw out the idea that Rivers is irreplaceable, Osbourne allegedly got emotional.

"Can we please move on so I don't cry on morning TV?" asked the former The Osbournes star, who said she thinks of Rivers every single day.

"I kind of live my life right now by, 'What would Joan do?' She'd come back from the grave, slap me in the face and tell me to go back if I didn't do it."

Osbourne called Rivers her "teacher, therapist, closest friend, inspiration, and grandmother" on Facebook shortly following her death. According to Us, Osbourne also got a bumblebee tattoo in honor of Rivers, saying she had defied gravity and logic just like the insect.