COMBINE lemon juice, Worcestershire sauce, seafood seasoning, lemon pepper, basil and garlic. Gradually add oil, stirring mixture until thickened. Reserve half of marinade for basting. Add shrimp to remaining marinade; stir to coat evenly. Cover shrimp and refrigerate 30 minutes. Drain shrimp; discard marinade.
HEAT grill to medium-high (400-450˚F). Cut slits in a sheet of ALCAN® Ultimate Grilling Foil. Place on grill rack with non-stick (dull) side toward food. Arrange shrimp on top.
GRILL uncovered 4-6 minutes, turning and basting once with reserved marinade, until shrimp are firm and pink.
REMOVE shrimp from aluminum foil sheet; allow remaining juices to cool before handling foil.