This article is by Shin Ha-nee and read by an artificial voice.
K-pop juggernaut BTS is set to make more history with its upcoming full-length album, "Arirang" — the seven-member group's first release in nearly three years. Its agency, BigHit Music, has called the record an exploration into the band's "roots and identity."
What does that musically entail for BTS, a group whose sound has constantly evolved?
Since its debut in June 2013, BTS has been on a constant sonic evolution — starting from raw, old-school hip-hop to a more pop-oriented turn in the mid-2010s, followed by the English-language chart-toppers "Dynamite" (2020), "Butter" (2021) and "Permission to Dance" (2021) during the pandemic era.
As anticipation builds for what is expected to be one of the biggest K-pop releases in history, "Arirang" arrives not simply as another comeback but as a moment of self-examination.
To understand what may lie ahead, here is a closer look at how BTS's musical identity has evolved — and how each era has laid the groundwork for the next.
Hip-hop beginnings
BTS's earliest albums, often referred to collectively as the "Skool" trilogy, may not be familiar to casual listeners today.
Yet, these works contain the DNA that would later propel the group to global relevance, with key sonic architects — including main producer Pdogg, alongside Supreme Boi and Slow Rabbit — shaping BTS's sound from the beginning, along with members RM and Suga.
At its earliest stage, BigHit Music and HYBE founder Bang Si-hyuk envisioned BTS not as a conventional idol group but more as a hip-hop crew, modeled after acts like Teddy's 1TYM, with rapper and leader RM positioned as its key pillar.
BTS's debut single "2 Cool 4 Skool" (2013), followed by its first EP "O!RUL8,2?" (2013) and second EP "Skool Luv Affair" (2014), established a confrontational tone. Tracks like "No More Dream" (2013) and "N.O" (2013) were blunt critiques of Korea's rigid education system and the suffocating social pressure placed on youth, reflecting the members' real-life experiences.
Verses like "Why are you forcing me to go in a different direction? Mind your own business, please don't force me" from debut track "No More Dream" are representative of this era.
Musically, BTS's early discography leaned heavily into aggressive, old-school hip-hop sounds, which continued into the group's first full-length album, "Dark & Wild" (2014). The album was the last episode in the band's hip-hop driven era, brandishing a raw edge while also broadening its thematic scope into romantic narratives through "Danger" (2014) and "War of Hormone" (2014).
Meanwhile, B-sides, such as "Paldogangsan" (2013), highlighted the members' diverse regional identities through dialect-heavy lyrics — an early demonstration of BTS's commitment to personal storytelling, which continues into later tracks like "Ma City" (2015).
"BTS's debut with a fresh identity as a hip-hop idol group helped set it apart from existing acts, yet cannot be viewed as an elaborate strategy for broad public appeal," said late music critic Kim Young-dae in his book "BTS: The Review" (2019).
"Nevertheless, it has undeniably been the core driver behind BTS's significant overseas expansion," Kim pointed out, noting that the group's emphasis on authenticity and creative agency resonated particularly with U.S. audiences.
A sonic makeover
BTS's first major turning point came with its third EP "The Most Beautiful Moment in Life PT. 1" (2015), the beginning of a trilogy that redefined the group's musical and narrative scope.
While the core theme of youth and embedded critiques on Korea's societal landscape remained intact, the sound softened from its earlier hip-hop-centered aggressiveness. The members adopted a more pop-oriented approach as they closed the chapter on their late teenage years and opened a new one into early adulthood.
This transition, coupled with elaborate visual storytelling that expands throughout the band's discography, reflect...