Taylor Swift and Eminem have both donated items for a charity auction that follows the event called "GRAMMY Awards." The GRAMMY Awards is an annual music awards ceremony that honors outstanding achievements in the music industry. It is organized by the Recording Academy and features performances by popular artists and recognition of various music genres and categories. The charity auction often takes place after the GRAMMY Awards to raise funds for charitable causes, and artists like Taylor Swift and Eminem contribute items for auction to support those efforts.