K-pop has witnessed the rise of numerous iconic groups over the years. While the industry constantly evolves, the second generation of K-pop, which spanned roughly from the early 2000s to the early 2010s, laid the groundwork for the genre's global expansion. During this era, several groups emerged as trendsetters.

In an era where technology wasn't as advanced as it is today and smartphones weren't yet ubiquitous, these iconic groups still managed to skyrocket to fame, garnering millions of views for their music videos. Despite not debuting in the age of mass streaming, these second-generation groups left an indelible mark on K-pop history with groundbreaking hits and record-breaking views.

Here are some of the iconic second-generation K-pop groups and their most-viewed music videos.

BIGBANG – BANG BANG BANG [666M]

TVXQ – MIROTIC [89M]

GIRLS’ GENERATION – Gee [321M]

2PM – HANDS UP [86M]

2NE1 – I AM THE BEST [371M]

Wonder Girls – NOBODY (Eng. Ver) [131M]

miss A – Only You [105M]

SUPER JUNIOR – Mr. Simple [232M]

SHINee – Ring Ding Dong [173M]

BEAST – FICTION [132M]

KARA – STEP [126M]

4MINUTE – Crazy [199M]

T-ARA – NUMBER NINE [98M]

f(x) – Electric Shock [143M]

SISTAR – Alone [148M]

GIRL'S DAY – Something (Dance Ver.) [63M]

Apink – Mr. Chu [93M]

INFINITE – Bad [55M]

Second-generation K-pop artists paved the way for the genre's global expansion, introducing audiences worldwide to its infectious melodies and dynamic performances. These iconic groups continue to inspire generations of K-pop artists, leaving an enduring legacy in the world of music.