从组合转型以SOLO艺人的白豫彬发行首张个人单曲《비행구름（Contrail）》，正式宣告展开活动。 组合DIA出身的白豫彬变身为SOLO歌手。 《비행구름（Contrail）》与白豫彬特有的魅力嗓音相配，清凉旋律和节奏结合，是一首感性流行音乐。 从组合DIA的主唱变身为SOLO歌手，白豫彬对一直以来信任自己并等待的粉丝们的感谢之情都放进歌曲里，增添了意义。 向SOLO艺人迈出新的步伐的白豫彬，通过首张单曲《비행구름（Contrail）》将展现怎样的音乐成长呢？令人十分期待。 PRODUCER 송동운 Lyrics by 펀치 Composed by 백마리, 정민서(Meansert) Arranged by 백마리, JoeSwan Vocal by 백예빈 Bass by JoeSwan Keyboard by JoeSwan Guitar by JoeSwan Drum by JoeSwan Background Vocals by 백예빈, 지연 Midi programming by 백마리