JYJ rehearsed while wearing traditional Vietnamese hats.

CJ Entertainment said, "JYJ had a rehearsal tonight for their Vietnam concert of their Asia tour. The rehearsal was held during the day and it was very hot so JYJ went on stage with traditional Vietnamese hat 'non' on. They showed their love for their fans as they wore the hats their fans made for them."

The members had also posted on their SNS pictures of themselves wearing the hats, showing their love for their fans.