Live-2017 Solo FMT -Hon! Ki! La!- 2020

Live 2015 FNC KINGDOM 2016

Live-2018 Solo Concert -Cheers- 2019

Live-2015 Solo Concert -Merry 302 MHz- 2016

Because It's Raining (비오니까) Single • 2025

You, Clouds, Rain (비도 오고 그래서) Single • 2023

Heejae, Delete (희재, 삭제) Single • 2023

Only One Person (My love X Lee Hong Ki (FTISLAND)) (한사람만 (2023) (여름날 우리 X 이홍기 (FT아일랜드))) Single • 2023

Amor Fati (아모르 파티) Single • 2023

Drawing EP • 2021

더 플레이리스트 Special Single • 2021

Found me Single • 2021

Can I Love Again (다시 사랑할 수 있을까) Single • 2021

Thank You Single • 2018

Still love you Lee Hong Gi & Yoo Hwe-seung • 29M views

질풍가도 (Cover) Lee Hong Gi • 6M views

Can I Love Again Lee Hong Gi & Baek Z Young • 1.1M views

천상연 (cover) Lee Hong Gi • 1.1M views

고민중독 (COVER) Lee Hong Gi & FTISLAND • 2.5M views

FT아일랜드가 부르는 '성시경 - 희재' cover Lee Hong Gi • 2.3M views

FT아일랜드가 부르는 ‘優里(유우리,Yuuri) - ベテルギウス(베텔기우스,BETELGEUSE)’ Lee Hong Gi • 3.1M views

첫눈처럼 너에게 가겠다 Lee Hong Gi • 2.4M views

이홍기가 부르는 ‘에메랄드 캐슬 - 발걸음’ Lee Hong Gi • 1.1M views

FT아일랜드가 부르는 ‘윤하 (YOUNHA) - 사건의 지평선’ Lee Hong Gi • 764K views

Beautiful Korean Duet Playlist • YouTube Music

흥 On Playlist • YouTube Music

Legendary Korean Music Remake Playlist • YouTube Music

Touching Korean Ballad Playlist • YouTube Music

Korean Trot Dance Time Playlist • YouTube Music

[월간 에프티] 이홍기 cover & FT아일랜드 cover Playlist • 홍기종기 (이홍기) • 775K views

[302Hz] 이홍기의 라이브에 주파수를 맞춰보세요 Playlist • 홍기종기 (이홍기) • 52K views

Jeong Eun Ji 28.8K subscribers

SEO EUNKWANG 8.16K subscribers

izi 4.94K subscribers

Kim Tae Woo 6.57K subscribers

Park Boram 11.3K subscribers

FTISLAND 2.27M monthly audience

Kim Jong Kook 33.9K subscribers

Jung Dong Ha 7.6K subscribers

CNBLUE 2.66M monthly audience

Yoonmirae 45.3K subscribers