TVXQ's U-Know Yunho left Kimpo International Airport for Japan on February 16.

TVXQ is currently on their 11 city tour through Japan that began at Yokohama on January 18.

The group originally was planning a 20 shows concert however due to all the excitement and buzz as a result four additional performances were added beginning of January and added two more performances.

The tour is titled 'Live Tour 2012: Tone' is expected to bring in approximately 550,000 fans.

TVXQ will release their new single album 'STILL' in Japan on March 14.