Mika Kobayashi x Hiroyuki Sawano - Before my body is dry [Kill la Kill OST]
Mika Kobayashi x Sawano Hiroyuki - βios
Hiroyuki Sawano - X.U. full (Vocal: Mika Kobayashi) - The last seraph
Sawano Hiroyuki X Mika Kobayashi - Melancholia (Xenoblade Chronicles X OST)
Sawano Hiroyuki & Mika Kobayashi - X.U. (Последний Серафим / Owari no Seraph)
Hiroyuki Sawano feat. Mika Kobayashi - X.U.
Sawano Hiroyuki x Mika Kobayashi - Aliez (Aldnoah Zero OST)
Sawano Hiroyuki x Mika Kobayashi - Don't Lose your way (piano cover)