Fashion Police star Kelly Osbourne has insisted that she and her boyfriend Matthew Mosshart are not engaged.

The 28-year-old star is adamant that her beau hasn't popped the question.

Speaking on The Kyle & Jackie O Show on Australian station 2DayFM, Kelly said: ''I'm not telling you guys anything. When I have a ring on my finger, then you'll know I'm engaged!''

Osbourne also spoke out about Lady Gaga's recent comments which said that Fashion Police "breeds negativity," saying: ''This is something that I still to this day do not understand, I used to be obsessed with her ... she brought history and fun back into music.

''When I got this hypocritical email that she put across on her Facebook, I was like oh my god, now I don't like you anymore, but I do respect her as an artist.''