X(旧Twitter) ^ Heather Chen (2016年9月27日). “ How a 'Pen-Pineapple-Apple-Pen' earworm took over the internet”. BBC News. http://www.bbc.com/news/world-asia-37480920
notions of abundance and specificity and packaging them neatly into an earworm for the generations." ^ “All I Want for Christmas Is You - Mariah Carey”