ボカロデュエット・コレクション (Vocalo Duet Collection)

"ボカロデュエット・コレクション" (VOCALOID Duet Collection) is a compilation albums with only classic VOCALOID duets. It contains 13 tracks, sung by Hatsune Miku, Kagamine Rin, Kagamine Len, Megurine Luka, KAITO and GUMI.

The album is purchasable on Amazon.