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Official YouTube music video for Rothy’s Alphabet. The poster shows Rothy with both hands near her face and the original 1theK OFFICIAL mark.

What did Rothy write into the five songs on “FLAT”?

Published Oct 10, 2026

Singer Rothy released the five-track EP “FLAT” on October 8, led by the title tracks “Alphabet” and “Don’t Be.” She wrote lyrics for every song.

Track list

The sequence is “Alphabet,” “Don’t Be,” “First Train,” “Sweetest” and “Back to Me.” EGO GROUP is the label, with distribution by Kakao Entertainment.

Songwriting credits

Rothy is credited as a lyricist on all five songs and co-composed “Don’t Be,” “First Train,” “Sweetest” and “Back to Me” with HAHM. HAHM composed “Alphabet” and arranged every track.

About the EP

In the album introduction, Rothy says the record traces the time from falling in love to finding herself again.

YouTube ↗1theK (원더케이) ↗

Rothy’s official Alphabet music video, from the EP FLAT. Published October 8, 2026 on 1theK’s official YouTube channel. Original YouTube player.

1theK (원더케이) / EGO GROUP · YouTube · YouTube

Sources & context

2026-10-10T04:13:22.680Z

Melon · EGO GROUP release information ↗Melon · Rothy official artist profile ↗