The first number-one song on the chart was "Stay Gold" by Hikaru Utada on the issue dated January 16, 2008.
[2] The first number-one song on the chart by a non-Japanese artist was "Bleeding Love" by Leona Lewis in the issue dated April 30, 2008.
[5] From December 2013, Billboard incorporated more digital music stores (such as Recochoku and Mora) into the chart.
The companies will distribute the sales from over 3,900 digital stores nationwide, alongside streaming services with Apple Music, Awa and Line Music, which will commence in 2017 and will be recognized as points (similar to album-equivalent sales).
In addition, Afrojack was featured artist of two number one's by Sandaime J Soul Brothers, "Summer Madness" and "Scarlet".