Guy Fieri takes a cross-country road trip to visit some of America's classic "greasy spoon" restaurants that have been doing it right for decades.

Guy Fieri has a rock-star lineup kickin' it with him in the kitchen. First, in Kansas City, Mo., Chiefs' head coach Andy Reid tackles pigskin at a joint meticulous about their meat. Then, in Waltham, Mass., rocker Sammy Hagar rolls into a spot servin' a crazy burger and pumpkin-bread French toast. And in Boston, Chef Ken Oringer is divin' into a seriously unbelievable lobster roll.