user: Question: Who won the most recent Favorite Rap/Hip-Hop New Artist at the American Music Awards?
Columns: ['Year', 'Association', 'Category', 'Nominated work', 'Result']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1989.0, 'MTV Video Music Awards', 'Best Rap Video', '"Wild Thing"', 'Nominated']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Association" = 'American Music Awards' AND "Category" = 'Favorite Rap/Hip-Hop New Artist';