Koda Kumi is Japanese best selling singer in 2006 according to ORICON, with gross sales of 12.6 billion yen (~USD100 million).
The sales total is from Kumi’s singles, albums and DVDs released in 2006.
Ranked 2nd and 3rd are band Kobukuro and Ken Hirai. Hirai’s compilation album 10th Anniversary Complete Single Collection ‘95-’05 is the best selling album of the year.