KELL Y Osbourne is seeking help at a rehabilitation clinic in LA. The TV star, who was arrested last week for allegedly slapping a gossip columnist, will spend at least 30 days at the facility. 'Yeah, Kelly's in rehab,' her mum Sharon Osbourne, 56, tells Radar Online. 'She knew that it was the right thing to do at this point and we're proud that she did it. 'The family is all standing behind her. Kelly knew that she needed help and she's getting it. 'This is one of the absolute worst things that a parent can face, for their child to go through rehab. And not once, but twice. 'However, we are all very glad Kelly's doing it.' In 2004, Kelly, 23, checked into Promises in Malibu to fight an addiction to painkillers. - NOW