CREATE TABLE table_1566852_8 (cover_model VARCHAR, pictorials VARCHAR)

Who was the cover model when the issue's pictorials was pmoy - sara jean underwood?
SELECT cover_model FROM table_1566852_8 WHERE pictorials = "PMOY - Sara Jean Underwood"
SELECT "cover_model" FROM "table_1566852_8" WHERE "PMOY - Sara Jean Underwood" = "pictorials"