VIDEO : Robert De Niro and Billy Crystal Surprise Whoopi Goldberg for 60th Birthday

Robert De Niro and Billy Crystal helped to kick off Whoopi Goldberg?s 60th birthday celebrations on Friday by making surprise appearances on her talk show. The ?Ghost? actress marked her age milestone with a special episode of ?The View,? which was packed with unannounced celebrity visits and messages from her famous friends. Robert was the first surprise guest to join Whoopi on the show and wish her a happy birthday, while the birthday girl admitted his presence meant the world to her.