Kelly Osbourne was left red-faced when she accidentally flashed her private parts at dad Ozzy in a joke gone wrong. Kelly was so amused after donning a pair of comedy pants, she decided to show the Black Sabbath frontman - but she forgot the outfit was crotchless. The 22-year-old says, "I recently wore some huge pants that start at your knees, attach to your bra and have a slit for you to go to the loo. "I thought I looked so funny in them I told my dad to have a look - I forgot my bits were hanging out! I wanted to die!"