NEW YORK -- Sammy Davis Jr. strolled out, stared at the audience and lost his voice. Smokey Robinson taught the Temptations the words to his latest song, "My Girl," moments before they took the stage. And a family named Jackson appeared on Amateur Night and became superstars.

Tradition fused with talent and pizzazz for the annual Independence Day holiday weekend concert at the Robert Mondavi Summer Music Festival Saturday night.