Petition filed in federal court by singer 's children Debby and Travis . They claim custody of 32 years Kim is keeping him ' secluded ' from performing . Mrs Campbell stands in for husband for Oscars Best Song nomination . Country ##ion legend has appeared 150 times since 2011 diagnosis .
Petition filed in Nashville court by singer 's children Debby and Travis . They claim wife of 32 years Kim is keeping him 'secluded ' from family . Mrs Campbell stood in for husband for Oscars Best Song nomination . Country music legend has performed 150 times since 2011 diagnosis .