"Key of Heart" / "Dotch"
Single by BoA
from the album Made in Twenty (20)
ReleasedAugust 9, 2006 (2006-08-09)
August 21, 2006 (2006-08-21) (South Korea)
Recorded2006
Genre
Length8:19
LabelAvex Trax
BoA singles chronology
"Nanairo no Ashita: Brand New Beat / Your Color"
(2006)		 "Key of Heart" / "Dotch"
(2006)		 "Winter Love"
(2006)
Alternative Cover

"Key of Heart" is BoA's 20th Japanese single and 6th Korean single. The single was available solely in CD+DVD format in Japan with a "special summer low price" and first pressing to commemorate this for being her 20th single.

Compared to previous singles, the sales for "Key of Heart" were low, but this was due to BoA being preoccupied with other projects and the lack of promotion from Avex Trax.

Music video

BoA's Key of Heart music video features BoA singing in a suburb land while driving a jeep. Then dancing on a mountain with 4 other dancers then she meets up with the dancers in a little town, they then dance on the streets. This music video also features BoA singing next to a river. Music video was shot in Lone Pine, California.

Commercial endorsements

Key of Heart was used as the theme song for the Japanese version of the movie Over the Hedge and also served as a background song in the music.jp commercials. Dotch was used as the background song for the Kosé Fasio commercials.

In the Korean version of Key Of Heart the music video, it features Donghae from Super Junior. The music videos Key Of Heart show a sad love story. BoA was in a relationship with Donghae who gives her a necklace with a heart pendant (a couple pendant). On her first performance, Donghae decides to give her flowers before she goes on stage and ends up in an accident due to which he dies. A scientist decides to make him a cyborg and succeeds in making a cyborg Donghae. Donghae notices that BoA is wearing the pendant he had given her before he died and realizes that she was the one he loved. He then appears in all of her performances/public appearances and takes photos of her. During one of these outings he sees her current boyfriend and is heartbroken but continues taking photos of her. On another occasion, he goes to take photos of her during her rehearsal and a stage light nearly falls on her. He quickly leaps in and saves her. She picks up his camera and sees her photos on it. The video ends with them crossing paths and her noticing the heart pendant attached to his camera as a charm. She sees the photos of their past and starts crying as the security guards don't let her go to Donghae.

Track listing

TV performances

Charts and certifications

Certifications

Region CertificationCertified units/sales
Japan (RIAJ)[1]
Physical single 		Gold 41,000[2]

Release history

Region Date
Japan August 9, 2006
South Korea August 21, 2006

References

http://www.avexnet.or.jp/boa/

  1. ↑ "Japanese single certifications – BoA – Key of Heart / Dotch" (in Japanese). Recording Industry Association of Japan. Retrieved December 13, 2021. Select 2006年08月 on the drop-down menu
  2. ↑ "オリコンランキング情報サービス「you大樹」" [Oricon Ranking Information Service 'You Big Tree']. Oricon. Retrieved November 1, 2014.
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