 sold over 2.2 million, making it Japan's best selling single by a solo female artist and was the best selling single of that year, the single followed by the highly successful album Concentration 20.Her first greatest hits album 181920 was released prior to her hiatus in 1998.After a leave of absence, Namie returned to the music scene with the 2000 album "Genius 2000", but from then on she faced decreasing sales.