Hyolyn - Good Bye

Good bye (안녕)

【TVPP】Hyorin(SISTAR) - Hello, Goodbye, 효린(씨스타) - 안녕 @ I Am a Singer 3

Hello/Goodbye (You who came from the stars OST) - Hyorin (of SISTAR) Lyrics [HAN+ENG+ROM]

[MV] Hyolyn(효린) _ Good bye(안녕) (My Love From the Star(별에서 온 그대) OST Part 4)

1theK (원더케이)

[C.C] Beautiful Harmony made by Hyolyn and her Vocal Partners🎵 HYOLYN - GOODBYE #SISTAR #HYOLYN

[오! 나의 파트,너] 고막 힐링♡ 효린X초통령 누나X우리 동네 음악대상 ＜안녕＞ 20200523

MBCentertainment

[Simply K-Pop] HYOLYN (효린) - Hello, Goodbye (안녕) _ KMDF 2020

Hyorin - Hello/Goodbye (You who came from the Stars OST)

Good bye (안녕)

【來自星星的你 OST】Hyolyn (SISTAR) - 'Hello, Goodbye (안녕)' 官方中字

台灣索尼音樂 Sony Music Taiwan

HYOLYN (효린) - 안녕 (Good bye) | KCON SAUDI ARABIA 2023

HYOLYN (효린) - 안녕 (Good bye) | KCON 2022 SAUDI ARABIA

[Show Champion] [K-DRAMA OST] 효린 - 미치게 만들어 + 안녕 (HYOLYN - Crazy of you + Good bye) l EP.370

[Hyorin] - Hi (Your OST from the Stars) @ Popular Song Inkigayo 140126

SBSKPOP X INKIGAYO

[2round] 'Spring rain' - Good bye , '봄비' - 안녕, 복면가왕 20190324

MBCentertainment

[HD繁中] HYOLYN 孝琳 (Sistar) - 再見 (안녕) (來自星星的你 OST) @ 人氣歌謠

Hello, goodbye - Hyorin (My Love From The Star - OST)

Hyorin (SISTAR) - Hello,Goodbye (안녕) Karaoke/Thaisub

[쇼챔이네 겨울 준비] HYOLYN - Crazy of you + Good bye (효린 - 미치게 만들어 + 안녕) l Show Champion l EP.456