music: 60's Chart Toppers: Name The Artist: Cherry, Cherry?

Questions

Probably French origin; tangy, sharp; appetizer, salad, dessert.?

Swiss origin; nutty, sharper than Swiss; cooking, dessert.?

Italian origin; pungent flavor; crumbly; in salads, for dessert.?

English origin; mild to very sharp; snack, cooking, dessert.?

What inescapable purveyor of background celebrated its 60th B-Day in 1994?