1Flower Rock
2Brand-New Days
3Haruka
4Let It Go!
5Neverland
6Top Secret
7Polar Star
8Freedom
9Mitaiken Future
10Puppy
11You Don't Know Who I Am
12Just Do It
13God Bless You
14Sunrise Yellow
15So Today...
16Satisfaction
17Distance
18Stay
19You Are My Life
20Shiawaseori
21Beautiful
22Be Free
23To The Light
24Primavera
25Shadows
26Paradise
27Hold the Moon
28Pretty Girl
행복 이론 (Theory of Happiness)
BURN IT
마중 (낮에 뜨는 달) [2023 Remake]
F-R-I-E-N-DS
DOOR
이홍기의 플레이리스트 <ONCE>
1행복 이론 (Theory of Happiness)
2BURN IT
3마중 (낮에 뜨는 달) [2023 Remake] (Inst.)
4마중 (낮에 뜨는 달) [2023 Remake]
5F-R-I-E-N-DS
6새들처럼
7Hello Hello
8DOOR
9Who I Am (Live Ver.)
10Pretty Girl