TVXQ is busy practicing for their concert in Seoul.

On November 17-18, TVXQ will be holding their 'TVXQ! LIVE WORLD TOUR Catch Me in Seoul' Concert at the Olympic Stadium in Seoul. 

This concert sold out within 3 minutes, showing the power of TVXQ.

This concert will be the start of their world tour. They will then move on to Thailand and other parts of Asia. 

This concert in Seoul is their first concert in 4 years since their last one in 2009.

Their agency has commented that TVXQ has been busy practicing for this concert.

TVXQ has recently come back after 1 year and 8 months with their new title song, "Catch Me."