BoA is set to release a limited edition single, ‘Key of Heart,’ on the 21st. The single is the Korean version of her Japanese single of the same title and will only be available on-line and on mobile phones for a limited time. This is BoA’s 20th single in Japan, released on the 9th of August.
The song is about how love connects two people. A mixture of fresh lyrics and a bright melody, this song became very popular after being featured in a TV advertisement for Olympus, a company BoA endorses.