updated 04/12/2012 AT 5:00 PM ET
•originally published 04/13/2012 AT 10:00 AM ET
Don’t expect Christina Aguilera to get an apology from Kelly Osbourne.
The Fashion Police cohost, 27, infamously called The Voice mentor, 31, fat on TV, and she’s not retracting any time soon.
“I’m sorry,” she continues, “but I stand by that.”
And Osbourne would have no problem telling that to Aguilera directly.