Singer Kelly Osbourne has lashed out and threatened to "b***h slap" a woman who knocked her over on ski slopes.

Left with a swollen and bruised right hand following the tumble, Kelly wasn't happy that her fellow skiier didn't stop to check if she was alright afterwards, reports femalefirt.co.uk.

Posting a picture of her hands on photo-sharing site Instagram, she wrote: "To the b***h on the slopes that took me down today laughed in my face and did not even stop to see if I was ok! I'm left landed so there is a #B***hSlap coming your way let's hope #karma meets you first! (sic)".

Despite the injury, Osbourne soon cheered up after spending time with her niece, the daughter of her brother Jack and his wife Lisa.

Sharing a photograph of her hugging the youngster, she wrote: "There is no better feeling than a hug from my #perfect niece Pearl! She is the definition of happiness!".

The star has not had great luck in the past fortnight, as last week saw her get struck down with flu and having to cancel plans.

"Has anyone else had this awful flu that is going around if so how long does it last? no 1 wants to come near me incase they get it! #Ashuuu (sic)," she wrote on micro-blogging site Twitter at that time.