Astromantic was released via Avex's record label Rhythm Zone on May 26, 2004, and marks the group's first studio album in over three years, since March 2001's Expo Expo. It is the group's first album without Lisa as the vocalist, since her departure from the trio in April 2002.[2] Instead of finding a new vocalist, the band started to collaborate with different singers, with each collaboration credited to "m-flo loves" the featured artist. Remixes of songs from this album were later released on the Astromantic Charm School remix album, released on September 15, 2004.
Reception
Astromantic reached number 2 on the Oricon Albums Chart and stayed on the chart for a total of 34 weeks. The album sold 330,497 copies by the end of 2004, and ranked at number 42 on the year-end Oricon Albums Chart.