The RIAJ Digital Track chart (RIAJ有料音楽配信チャート, RIAJ Yūryō Ongaku Haishin Chāto) was a record chart that ranks the best selling digital singles in Japan, with data provided by the Recording Industry Association of Japan from April 2009.
The RIAJ originally started certifying digital downloads in August 2006.
This now defunct chart ranked the highest Chaku-uta (ringtone) downloads for the month.
The chart week runs from Wednesday to Tuesday and updated on every Friday at 11 a.m (JST).
[5] Only three non-domestic artists have ever broken the top 10 charts: Michael Jackson's "Thriller" at #7 in June 2009 (directly after his death)[6] and the Backstreet Boys' "Straight Through My Heart" at #4 in September 2009[7] and Lady Gaga feat.