JUDE LAW's ex-wife SADIE FROST is desperately trying to convince supermodel pal KATE MOSS to fly to South Africa with her next month (APR06) to help build an orphanage.

The fashion designer, who is joining the Homes Of Hope project, will be directly involved with building a brick house for AIDS orphans and is hoping her close friend will join the crusade.

A friend of the catwalk beauty says, "Kate is going to donate money and is talking to some of her clients to see what else can be done."