BoA dances with TVXQ!'s U-Know Yunho for comeback show

BoA and TVXQ!'s U-Know Yunho [SM Entertainment]

K-pop queen BoA will perform a special dance number with TVXQ!'s U-Know Yunho on her forthcoming TV documentary.

In BoA's documentary special "BoA4354," U-Know Yunho will be joining the "No. 1" singer's special performance of her new title song "Only One," SM Entertainment officials said through a press release Tuesday.

The firm explained that U-Know has decided to stage the duet performance with BoA as a way to show his support and congratulate her on the new release.

Airing on July 28, the documentary celebrates BoA's return to the music scene with the seventh full-length album "Only One," which has been set to hit the shelves Wednesday.

So far, the firm released two different versions of the title song and the music video of the same name online -- the dance version and drama version.

Already, the music video for the dance version of "Only One" has reached over 1.2 million views since it became available for streaming online on July 21. The drama version starring actor Yoo A-in as the male lead was uploaded today.

The number '4354' in "BoA4354" signifies the number of days between BoA's debut date, August 27, 2000, and the air date of her show.

SBS officials confirmed last week that the special will feature the last 13 years of her singing career, behind-the-stage clips and interviews with her close friends.

BoA has been pursuing her career both in Korea and Japan. The star is arguably one of the leading K-pop artists that has helped to promote the Korean culture in Japan.

In the run-up to her new release, BoA is preparing to appear as one of the three celebrity judges for the second season of SBS' audition program "KPOP STAR," alongside JYP Entertainment C.E.O Park Jin-young and YG Entertainment C.E.O Yang Hyun-suk.

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