Kelly Osbourne knows a thing or two about being a famous teenager.
When her family’s hit MTV series The Osbournes blew up over a decade ago, Kellz became an overnight superstar, with the world watching her every move!
And there were many mistakes made, some even on national TV, that she wishes she could take back.
According to Kelly, kids should screw up every once in awhile and not have to be ashamed of their actions! Even Justin Bieber!