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

【TVPP】Hyorin(SISTAR) - Unreasonable Reason, 효린(씨스타) - 이유 같지 않은 이유 @ I Am a Singer 3

【TVPP】Hyorin(SISTAR) - Fate, 효린(씨스타) -인연 @ I Am a Singer 3

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

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

태양(Taeyang) - 눈, 코, 입(Eyes, Nose, Lips)♬ |판타스틱 듀오(Fantastic Duo)| SBS ENTER

[MV] BAEK JI YOUNG(백지영)_The woman(그여자) (SECRET GARDEN DRAMA OST Part.1)

I Can See Your Voice [Korea] | Compilation & Best Performance

【TVPP】 Hyorin(SISTAR) - SOFA, 효린(씨스타) - 소파 @Duet Song Festival

Hello, Goodbye - Hyorin Sub Español (You Who Came From The Stars OST) I am Singer

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

에일리(AILEE)의 킬링보이스를 라이브로! - Heaven, 보여줄게, 저녁하늘, U&I, Higher, 노래가 늘었어, 손대지마, 첫눈처럼 너에게 가겠다, If youㅣ딩고뮤직

[HOT]I Am a Singer3 나는 가수다3 - Hyolyn - Destiny 효린 - 인연 20150213

[MV] 효린(Hyolyn) X 주영(JooYoung) - 지워(Erase) feat. 아이언(Iron)

판타스틱듀오 (Fantastic duo) 에일리(Ailee) '보여줄께(I'll show you)' - Fantastic performance by PANDUO

[#더시즌즈] 11년만의 재결합❤️씨스타 19 - 있다 없으니까 + Ma Boy + NO MORE｜KBS 240119 방송

Ailee Goodbye My Love( live) Fated To Love You OST

'Y Si Fuera Ella' Is The First Solo Song from JongHyun (SHINee) [The King of Mask Singer Ep 146]

Hyolyn - If I'd Loved Only a Bit | 효린 - 조금만 사랑했다면 [Immortal Songs 2/2016.09.03]

【TVPP】Solji(EXID) – West Sky ,솔지(이엑스아이디) – 서쪽 하늘 @Duet Song Festival

Kim Bum Soo & Kim Da Mi, perfect harmonizing 'I Miss You' 《Fantastic Duo》판타스틱 듀오 EP02