2NE1

A debut single whose bold colors and confident attitude overturned the established image of girl groups.

• The powerful synthesizer sound of the intro is the result of eagerly borrowing from the American pop·hip-hop production then in vogue.
• Lee Chae-rin's rap part, even in a short stretch, asserts the leader's presence through crisp, forcefully enunciated delivery.
• In the chorus, the four voices stacked layer upon layer (chorus dubbing) gather distinct timbres into a single sound.
• Onstage, the choreography favors moves closer to individual showpieces than to precise group dance, emphasizing each member's personality.

The title track of the first studio album “To Anyone,” marking the shift from the raw sound of the early debut days to more polished production.

• In the short stretch that builds tension just before the chorus (pre-chorus), Park Bom's high notes transform the song's mood in an instant.
• The 808 bass and restrained percussion arrangement show the strong influence of American hip-hop production in the early 2010s.
• The verse (stanza) structure, in which rap and vocals alternate, makes the four members' division of roles distinctly audible.
• The repeated arm movements in the choreography lock precisely onto the accents of the chorus rhythm, explaining the beat visually.

The song that most concisely captures the group's identity; on release it was quoted in countless commercials and variety shows and used like a catchphrase.

• The rough, simple synthesizer hook that appears from the intro is the key phrase running through the entire song, memorable after a single listen.
• Lee Chae-rin's rap rides the beat precisely with a short, clipped flow, expressing the song's swagger through the delivery itself.
• The part of the chorus where the four shout as if with one voice is counted among fans as the killing part they sing along to most often.
• Rather than frequently changing formations, the staging sets up moments when each member is shown in close-up one by one, revealing each presence in turn.

A song of a different grain from the flashy dance tracks, showing the group's gift for ballads and its emotional depth.

• Acoustic guitar and a restrained string arrangement create a mood in sharp contrast to the dance tracks that came before.
• Park Bom's vocal holds back on bent, embellished phrasing and leads the song with an unadorned tone, conveying emotion without exaggeration.
• Lee Chae-rin's rap part is placed briefly in the middle of the song, so that even within a ballad the group's own color is never lost.

A newly composed homage to Seo Taiji and Boys' 1995 song of the same name, through which the musical legacy of Yang Hyun-suk's generation was summoned again by a junior girl group.

• Unlike the original's heavy rock sound, the song was newly composed around a modern sound built on synths and 808 bass.
• The stretch just before the chorus, where rap and vocals cross, keeps the melodic skeleton of the original while overlaying the rhythmic feel of the 2010s.
• Park Bom's ad-libs are placed more sparingly than in the original, keeping a balance that never overreaches, even for a remake.
• Rather than directly recreating the social message of the original's era, the music video foregrounds each member's urban image, revealing the gap between the times.

The final single, released about two months after the disbandment announcement, offered only a recording and no new stage — a quiet farewell.

• The opening, built on a gentle piano accompaniment, sets a composed mood that stands in contrast to the flamboyance of the earlier songs.
• With Gong Min-ji gone, the remaining three voices (Lee Chae-rin · Park Bom · Sandara Park) take turns, giving the sense that each is claiming her share one last time.
• The chorus melody never climbs to a high peak but ends calmly, expressing the feeling of parting with restraint.
• The very fact that it was released only as a recording, with no stage promotion, is itself remembered as part of the song's story.