Korean girl group 2NE1 made its Japanese debut in front of 24,000 fans who gathered for Big Bang’s concert in Japan. The four-member group took part in the sold-out Big Bang concerts, which took place at the Yokohama Arena in Japan on February 10th and 11th. 2NE1 belongs to the same agency as Big Bang.

Appearing as a special guest at the concerts, 2NE1 sang their hits, “I Don’t’ Care” and “Fire,” wowing the Japanese audience. The girls said that they were just glad to wrap up their appearances at the concerts successfully and hoped to have made an impression on the Japanese audience. 2NE1 had only two concerts to impress Japanese fans before returning to Korea. They were sorry that they could no longer join Big Bang on their Japanese tour concerts, because of their prior engagements. Meanwhile, 2NE1 has released a new digital single titled “Follow Me” on February 9th.

Source: KBS Global

2NE1 joined Big Bang for 2 days of their Japanese tour, they aren't really Officially debuting in Japan.