Nayeon, Chaeyoung, Jihyo and Tzuyu teach fans how to buy Tickets for their concert (English Subbed)

Just a week to go before TWICE's 'World in a Day' concert!

That's going to be on August 9 at 3PM KST and if you still don't have your tickets, Nayeon, Chaeyoung, Jihyo and Tzuyu are here to guide you.