Celebrity Big Brother is getting ready to welcome some big names, and fans are buzzing with excitement.The latest gossip swirling is that The X Factor judge Sharon Osbourne, 71 , is planning to fly over from America where she lives with her rockstar hubby Ozzy Osbourne to join the housemates. Sharon will be hanging out again with familiar face Louis Walsh, another X Factor judge, who's said to have bagged a substantial fee to appear on the latest Celebrity spin off series.