was rushed to hospital over the weekend when she "cracked" open her head during a mystery accident.
The 27-year-old star - who is the daughter of Ozzy and Sharon Osbourne
- was taken in to Miami's Mercy Hospital after she kept "passing out" following the incident.
She wrote on her twitter page: "I just want 2 thank all the incredible doctors and nurses @ Mercy hospital in Miami 4 taking such good care of me u guys really are amazing!
"Long story short I cracked my head open then kept passing out I have the all clear my mum came 2 get me 4 full story watch the talk tomorrow. (sic)"
However, it would appear Kelly has become particularly accident-prone in recent months, as the 'Fashion Police' host recently broke her foot due to excessive workouts at the gym.
She said: "So, apparently, I've been walking around on a broken foot for weeks without realising something was wrong. My feet always hurt because of my bunions, but started to feel it in my ankle and knee and it turns out I had a couple of stress
"Running too hard on the treadmill caused me to pull the tendon away from the bone and give myself stress fractures. Now it's just a matter of time until it heals properly and gets back to normal."