60s 70s 80s was served as the first single and was formatted as an extended play. The EP contained three songs: "New Look", "Rock Steady", and "What a Feeling". The single debuted at the number-two position on the oricon weekly charts with over 114,000 copies sold. In the second week the single gained the number-one spot for that week, making it her first number-one single after 9 years and 3 months since "I Have Never Seen". According to Oricon, "60s 70s 80s" sold nearly 300,000 copies. 60s 70s 80s was certified platinum by the Recording Industry Association of Japan (RIAJ) for shipments of 250,000 units, her highest selling EP and her highest selling single since her single "Something 'bout the Kiss" (1999). Reception Best Fiction received favorable reviews from music critics. Adam Greenberg from Allmusic selected the album as one of Amuro's best works alongside her studio albums Play (2007) and Break the Rules (2002). Reviewing the album, he stated "Rather than taking on the basic manufactured pop sound common to the J-pop world, Amuro spends more of her energy in a dance format, using pounding beats and sexualized lyrics to create a different sound from the light and innocent pop saturating the market, acting as something of a Japanese Madonna in a sense. With Best Fiction, her third greatest-hits compilation, her output from 2002 to 2008 is covered in full detail." He commented that, while "There's some standard fare along the way as well -- items that are sure to hit the charts but leave less lasting impressions", he concluded "There's a lot of range covered here, and all of it performed quite well. Not bad stamina for a onetime idol singer." Best Fiction sold 681,000 copies in the first week and debuted at the number-one position on the Japanese Oricon Albums Chart. Within its third week, Best Fiction outsold a million copies, and Amuro became the only artist who produced million-selling albums in the oricon chart for three decades of her teens, 20s, and 30s. Best Fiction eventually spent six consecutive weeks at the number-one position, becoming the first album to do so in more than 14 years since the Dreams Come True's 1993 album Magic. Best Fiction became the second best-selling album behind Exile's Exile Love on the Oricon 2008 yearly album charts. In addition, it became the second best selling digital-format album by Japanese artists behind