Ballad group 2AM is making a comeback for the first time in seven years.

2AM has been releasing individual and group teaser photos according to the teaser schedule released previously.

October 22 KST, the ballad group dropped the tracklist to their fourth mini-album. According to the tracklist, the upcoming album has five tracks, including the double title tracks, "I didn't know because you were close," and "What do you mean goodbye?" along with "Can't sleep," "Always Me," and "Proposal."

2AM's 'Ballad 21 F/W' will be released on November 1 at 6 PM KST, so check out the tracklist below until more teasers are released.