Principal Investigator

1 A Song Without Word
2 11 (Hidden Track)
3 Homesick
4 Only One
5 Principal Investigator
6 Le Chat Magique
7 I'm My Fan
8 Velvet Sorrow
9 Good Morning
10 Vlad
11 Hey Guyz
12 Pray for Us
13 #1
14 (11) (Hidden Track)
15 망향
16 무언가
17 #1
18 우리를 위해 기도해 주세요
19 Hey Guyz
20 Vlad
21 Good Morning
22 벨벳소로우
23 팬이야
24 르샤마지끄
25 수사반장
26 Only One