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Lee Chang-yun, known professionally as E-Tion, is a South Korean singer and lyricist under KI Entertainment. He is a member of the boy group ONF and its ON team sub-unit.
![ONF 2021 LIVE CONTACT :: CODE #1. [REVERSE] movie poster](https://cdn-proxy.trakio.app/t/p/w185/4wjPi5x2igYJI9jrbE5QcJhSW8X.jpg)
ONF 2021 LIVE CONTACT :: CODE #1. [REVERSE]![온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 2 movie poster](https://cdn-proxy.trakio.app/t/p/w185/6DhiTgCYAg09SDRLGCktfByp6xD.jpg)
온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 2![온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 2 movie poster](https://cdn-proxy.trakio.app/t/p/w185/whume1STRxwi0EVBYU8ZMk669nG.jpg)
온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 2온앤오프(ONF) CONCERT [SPOTLIGHT] IN SEOUL NIGHT 1![온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 1 movie poster](https://cdn-proxy.trakio.app/t/p/w185/zyN3yVwFR1NoZGgxd77aZ4etce7.jpg)
온앤오프(ONF) CONCERT [SPOTLIGHT:THE HIDDEN SHADOW] NIGHT 1![2025 ONF CONCERT [THE MAP:STRANGER’S PATH] movie poster](https://cdn-proxy.trakio.app/t/p/w185/pvF5lXWpkD3HuDDJSXeXtKXlZD1.jpg)
2025 ONF CONCERT [THE MAP:STRANGER’S PATH]![2026 ONF CONCERT [THE MAP: BEYOND THE HORIZON] movie poster](https://cdn-proxy.trakio.app/t/p/w185/vQmZPhEa8KrUCwrqRqMpl9pube9.jpg)
2026 ONF CONCERT [THE MAP: BEYOND THE HORIZON]
![ONF [FOCUS ON AND OFF] tv show poster](https://cdn-proxy.trakio.app/t/p/w185/Au7UBGXv8opgUV1V7lUzl4Bu2i2.jpg)
