Several music outlets have published lists of the best songs of 2021, with some focusing on specific genres such as rock, k-pop, or country. The number of songs included in these lists varies, ranging from 40 to 100, and some outlets have also published lists of the greatest songs of all time or the best songs of a different year. It appears that there is no single, unified list of the best songs of 2021, with different outlets offering their own unique rankings and selections.