Who won the most recent favorite rap/hip-hop new artist at the American music awards?
CREATE TABLE "awards_and_nominations" (
  "year" real,
  "association" text,
  "category" text,
  "nominated_work" text,
  "result" text
);
SELECT MAX("year") FROM "awards_and_nominations" WHERE "association"='american music awards' AND "category"='favorite rap/hip-hop new artist';