Kelly Osbourne Reveals Ozzy Won't Sing at Jack's Wedding

As Jack Osbourne gets ready to walk down the aisle, big sis Kelly indicated their rocker dad Ozzy won't exactly perform at the wedding.

 OK! NEWS: KELLY & SHARON OSBOURNE DISH ABOUT GRAY HAIR & BABIES! Kelly simply told E! News, "No." Why wouldn't he perform at Jack's wedding to his fiancée Lisa Stelly? "I don't really think rock music is quite appropriate for a wedding," she said with a laugh.  Looks like Ozzy can get his fill of performing when he tours with his reunited band, Black Sabbath. Regardless, it sounds like the family is pretty psyched for Jack! OK! NEWS: KELLY OSBOURNE RECOVERS FROM HEAD INJURY The Fashion Police host mentioned every time she's around him she gets "teary eyed now." She added, "He's like, 'Stop it! Go away. Stop being dramatic. Get out of my face.' Because I'm like, 'I'm so proud of you. You're moving into a new house. You're getting married. You're having a baby. You have the most amazing fiancée ever!'"