Red Velvet’s first sub-unit is called Red Velvet – Irene & Seulgi, and it consists of two members: Irene and Seulgi. They debuted on July 6, 2020, with their first mini-album titled “Monster,” which included six tracks and became very popular in South Korea. The sub-unit was formed by SM Entertainment, and their debut was highly anticipated because Irene and Seulgi had already gained attention for their performances together before joining Red Velvet.
The mini-album “Monster” was a significant success, making them the best-selling female sub-unit in South Korea for the year 2020. The title song “Monster” is a pop dance track with a strong beat and intense sound, which helped showcase the duo’s unique style and charm. Since their debut, Irene & Seulgi have performed at various events and have been well-received by fans and critics alike.
In terms of statistics, their debut album “Monster” sold over 250,000 copies, and their music videos have garnered millions of views on platforms like YouTube. Overall, Red Velvet – Irene & Seulgi have established themselves as a talented and influential sub-unit in the K-pop scene.