In the ** world of 2021, the stars are shining, and all kinds of gods are competing for beauty. However, who will win the "Top Song of the Year" crown?This topic is like viewing flowers, each with its own perspective, but it is not difficult to find the answer, just use data as a guide, such as click-through rate, number of shares, number of comments, etc. Let's start with Taylor Swift's classic Love Story. Since its release, the song has attracted countless obsessions, and its extensive and heated discussions and controversies have been surging like a frenzy. Some call it an endless romantic getaway, others think it's too bland. But in any case, this song has undoubtedly become the best in the market this year. 
Obviously, in the digital age, those with high frequency of sharing tend to stand out more easily. BTS's "Love" and Dua Lipa's "Body" and other tracks have also made waves in the ** world this year. With their own unique style and charm, they have attracted a wide audience. On social media, the sharing rate of these songs is rising, and they are loved and appreciated by the public. 
However, we can't forget about the diverse formats of electronic and hip-hop. There are also many popular tracks emerging in these two areas, although due to the different audiences and styles, it is impossible to uniformly evaluate them. It must be pointed out that whether it is popular or niche**, it has its existence value and influence, and it cannot simply be judged by "genre" or "audience range" as the only indicator of "hit songs". Therefore, to find out the topic of "what is the most popular song this year", it is often necessary to consider a variety of factors. People's preferences for ** are varied, and the evaluation scale is naturally very different. But in general, the songs that can achieve an amazing number of songs on major platforms and even reach a record-breaking level all mean that they have been popular with the audience for a certain period of time and have become one of the focuses of the current world. Behind these songs, there are actually various unspoken rules and objective reality factors that judge them.