The 2030 World Expo to be held in Busan has just released a TV trailer!

In the futuristic trailer featuring celebrities such as actor Lee Jung Jae, singer Zion.T, rapper Wonstein, soloist Jeon So Mi and Oh My Girl's Arin, announce how 2030 Busan World Expo, despite being the first world class Expo to be held in Korea, will be one that would change the world and is something never seen before. 

In particular, Zion.T, Wonstein, Jeon So Mi and Arin form what is called the X4 of the 2030 World Expo in Busan. Fans of them can look forward to seeing more content that they will put out as part of X4 for the World Expo.

What do you think of the super cool trailer?