"ボーカロイド アニソンカバー COLLECTION -Boys side-" (Vocaloid Anime Song Cover Collection -Boys side-) is a compilation album by UNIVERSAL MUSIC JAPAN. It's composed of several tracks, all of them being covers of either opening or ending themes of various anime shows, rearranged by different Vocaloid Producers. The official site of the album with previews of each song can be found here The album is purchasable on Amazon See also ボーカロイド アニソンカバー COLLECTION -Girls side-