BTS has just made a history for being the first K-Pop group to be nominated and won at Billboard Music Awards and any other international music awards for that matter. Since multiple American news outlets have been continuously digging out what makes BTS popular, many people may also want to know more about it.

So, if you're one of those many people who just got BTS fever, here are 5 things you need to know to be fully accepted as the member of ARMY, one of the most loyal fandoms in the history of K-Pop.

BTS is the top selling group of the year

ARMY around the world has known this fact all along. As per Allkpop, BTS sold more than 700,000 copies of "You Never Walk Alone" album in February, which is also the highest in Gaon Chart history. Meanwhile, "Wings" album has been sold 783,923 copies, making the boys as the group with the highest total album sale.

They write their own socially-conscious music

While K-Pop music is known for its heartbreak and love lyrics, BTS dares to break the stereotype to write what People called as socially-conscious music. Many of BTS songs take on a mental health issue, bullying, confidence, and the pursuit of happiness. Rapmon, Jin, Suga, Jungkook, V, J-Hope, and Jimin want to make sure that every listener will have the message of every song they bring in.

They become phenom in a short period

Debuted in 2013, BTS is considered as one of the most successful K-Pop group that gains fame in just months. Soon after they're debuted by BigHit Entertainment, which is relatively a small company if compared to SME or YG, the boys have stolen millions of attentions with their eccentric style and music. In 2015, BTS appeared as the most promising rising star with the single "I Need U", which was also the group's first Top 10 hit in the country.

They sold out US Tour

Earlier this year, BTS has gone to their world tour, and the USA is one of their stops. They performed in Newark, Chicago, and Anaheim, and all was sold out.

They have millions of followers on social media

BTS is also the most-followed group on social media. BTS' Facebook fan page has 4.3 million, Twitter (5.9 million), YouTube (3.9 million), Instagram (3.6 million), and V-App (5 million).