ECHO【Gumi English】Crusher-P: The Living Tombstone Remix - YouTube
Echo - Gumi 1 Hour (Requested) - YouTube
AGEHA x Aviantese - "WHAT THE HELL'S GOING ON!?" A little preview of ECHO from STGCC Sunday... -- Gumi, ECHO (https://www.youtube.com/watch?v=cQKGUgOfD8U) Vocaloid Photo by the bae <3 | Facebook