First ever songs sung by vocaloid

I forgot to specify but I couldn't find meikos first demo song just featuring her
The source:
aminoapps.com/...
Intro song, meikos part and outro song:
• 【Karaoke】 Viva Happy ★...
Miku's song:
• "01_ballade" (Vocaloid...
Rin's song
• Vocaloid 2 Kagamine Ri...
Len's song
• Vocaloid2 Len Kagamine...
Luka's song
• Vocaloid 03 Megurine L...
Kaitos song
• [VOCALOID CV03] Meguri...
Gakupo's song
• 【神威がくぽ】Kamui Gakupo De...
Gumi's song
• メグッポイド Megpoid ~ Be MY...
My notes:
Ahhh this is the longest video Ive worked on I hope this does okay!! sub if you wanna see more!!
#vocaloid #vocaloidsong
Tags(ignore)
Vocaloid
Vocaloid song
Hatsune Miku
Kagamine Len
Kagamine Rin
Kaito
Meiko
Gumi
Gakupo