Prior to debut, N-Train trained with their agency for three years. In hopes to break the
idol group image of recording
dance-type music, MediaLine Entertainment directed their attention in recording
R&B and
soul-oriented music instead. N-Train debuted with a mid-tempo ballad song, " (One Last Cry)", on May 27, 2011. In one of their music reviews, a staff writer from
Allkpop complimented their debut single, noting that "N-Train will find most of their appeal is surprisingly through their singing, because boy is it good." The writer compared Jung Jung Kyun vocal ability to
TVXQ's
Max. ==Members==