Rehab singer Amy Winehouse has been offered help by many celebrity friends while she battles her drug problems. The sultry singer checked into a rehab clinic in London last month only after a video showing the star allegedly taking drugs was passed on to the British newspaper The Sun. Many offers of help to keep Winehouse healthy have been flooding in from celebrity friends including Sharon Osbourne, who spent years helping her rocker husband Ozzy battle his many drug addictions. Jude Law’s ex-wife Sadie Frost and The Who's lead singer Roger Daltrey have also visited and called the troubled star after she emerged from rehab. The singer’s father Mitch Winehouse says, "He (Daltrey) phoned and we talked about his experiences of drug addiction in his family. It’s great knowing people care."