Via allkpop:

Crowned with the title, �Queen of J-Pop�, selling albums has never been an issue for Ayumi Hamasaki. But the �Queen� has her eyes set on a loftier goal � to shatter the record for the most #1 singles sold on the Oricon chart, and she�s enlisted the help of a certain �Prince� to make her dream come true.

JaeJoong was approached by the star to appear in a PV for her previously released single, �blossom�, and he commented, �Ayumi Hamasaki is a big senior in my record label, so when I received the offer to appear in her PV, I was really happy. Although I feel a lot of pressure, I�ll try to do it perfectly!�

Prior to the release of the news, �crossroads� ranked at 156th on the Amazon Japan site. Official statements revealing JaeJoong�s PV involvement were released on the 27th, and 24 hours later, the album�s sales had skyrocketed to land in the 5th position overall.

Could this be a coincidence? The rise is too sudden and too extreme to shrug off.

The PV is included exclusively on the �crossroads� CD+DVD package which is scheduled to be released next month on September 22nd.

Source: amazon.co.jp, Yomiuri Shinbun, Ayumi Hamasaki Official Website, TV-Asahi