The track was produced by group leader Zico , who stated he began composing out of a "need to survive" to find a style that truly embodied Block B.

"NalinA" peaked at number 11 on the Gaon Digital Chart and reached number 3 on the Billboard US World Digital Songs chart.

The full version of the "NalinA" (난리나) music video was released on , as the title track for Block B's second mini-album, Welcome to the BLOCK . The song is widely considered the group's first major hit, establishing their signature "hype" and hip-hop-centric sound. Key Video & Song Details

The song remains a K-pop staple, famously covered by artists like (G)I-DLE's Soyeon on You Heeyeol's Sketchbook .

Approximately 100 million KRW (roughly $90,000 USD at the time) was invested in the music video to showcase the group's unique "rascal" and rebellious image.

The video is famous for its "Gorilla Dance" during the chorus, which became a viral sensation.

Block B(블락비) _ 난리나(NalinA)(Gorilla Dance ver.) MV

The track was mixed by world-renowned engineer Ken Lewis , known for his work with legendary hip-hop artists like Jay-Z, Kanye West, and Eminem. Commercial Success and Virality