Sharon Osbourne is feeling daughter Kelly's pain following her breakup with British model fiancé Luke Worrall -- but has assured her that heartbreak is an unavoidable part of growing up.
"I said to her, 'This will be the first of many breakups,' " Sharon, 57, told PEOPLE after Wednesday's episode of America's Got Talent. "It's what we all go through. I don't know any of my girlfriends who have never had their heart broken and end up with the first guy. I don't know anyone that has happened to."