Julie Andrews has an Oscar and a Grammy for Mary Poppins and it's soundtrack album. And Elton John has Grammys plus an Oscar for writing "Can You Feel The Love Tonight" for The Lion King.

Liza Minnelli has an Oscar for Cabaret but she's never gotten a competitive Grammy - she DOES have a special Grammy though. Her mother is the opposite - she got a special Best Juvenile Performance Oscar for her work in 1939 but never won either of the competitive ones she was nominated for, but she recieved two Grammys for Judy At Carnegie Hall.