First greatest ballads album from Namie Amuro includes 15 tracks selected by fans' votes. "Sweet 19 Blues" and "Can You Celebrate? feat. Hakase Taro" is newly recorded. Also includes a ballad version of "Contrail" as a bonus track. This edition comes with a bonus Blu-ray containing music videos of all the 15 tracks and two new music videos for "HimAWArl" and "Four Seasons." Ones for "Sweet 19 Blues" and "Can You Celebrate? feat. Hakase Taro" are newly created.