The group released their second "half" album on April 13, 2001, 6 months after their last album. "Melodies & Memories" was a special album consisting of remakes of Korean hits from the 80s and 90s. Instead of targeting their main fanbase of teenage listeners, this album appealed to adults in their 20s and 30s by arousing nostalgia. Singles from this album include Lee Ye-rin's "Always Like This Moment" (), and Hye Eun-yi's 1981 single "You Wouldn't Know" (). Like their third album, "Memories & Melodies" only had one music video promoting the album (the one for "You Wouldn't Know"). However, much effort went into this video, as it recreated scenes from four popular movies for each of the members, including scenes from "Pretty Woman". Sales at the end of 2001 totaled 259,259 copies.