The album was recorded at Fluxus Studio. The first track of this album Road to the Airport is a song for Lee Jeyoon, who left the band to study abroad after the release of their second album2002 Rock n' Roll Star. The band interviewed "The word we've been using since we released our first album in 1999 was Just Pop. We do not insist on the legitimacy of rock. It means that we will make a song that will be our favourite song, regardless of the genre's format." about the album's name.
Critical reception
Kim Byeongwoo of Music Y described the album as "The 'space' that achieved Just Pop is worth remembering for a long time. The charm of this album comes from its wide space." Weiv reviewed "My Aunt Mary's third albumJust Pop gives the impression that they have set their course properly." The member of the selection committee for the Korean Music Awards Lee Dongyeon said "Just Pop is a masterpiece that broadens the common denominator between mainstream and non-mainstream and at the same time informs the unnecessary boundary, which fits well with the purpose of the Korean Music Awards."