CREATE TABLE table_name_55 (year INT, association VARCHAR, category VARCHAR)

Who won the most recent favorite rap/hip-hop new artist at the American music awards?
SELECT MAX(year) FROM table_name_55 WHERE association = "american music awards" AND category = "favorite rap/hip-hop new artist"
SELECT MAX("year") FROM "table_name_55" WHERE "american music awards" = "association" AND "category" = "favorite rap/hip-hop new artist"