Sirius (Aoi Eir)
- Aoi Eir
- Sirius (シリウス)
- 2013.10.25 (TV Size ver.)
- 2013.10.30 (Digital)
- 2013.11.13 (Physical)
- Catalog Number
- SECL-1405 ～ SECL-1406 (CD+DVD)
- SECL-1407 (CD)
- SECL-1408 ～ SECL-1409 (Anime CD+DVD)
- ¥1,500 (CD+DVD)
- ¥1,200 (CD)
- ¥1,400 (Anime CD+DVD)
- ¥250 (Digital)
- CD Tracklist
- Sirius (シリウス)
- Kuroi Uta (クロイウタ; Black Song)
- Sirius (Instrumental) (Limited / Regular Edition Only)
Sirius (TV Size ver.)(Limited Pressing Edition Only)
- DVD Tracklist
- "Limited Edition"
- Sirius (Music Video)
- The Making of "Sirius" (The Making of"シリウス")
- Eir Aoi in Germany “AnimagiC 2013” (supported by Lis-Ani! TV)
- "Limited Pressing Edition"
- "Kill la Kill" Non Credit Opening 1 (キルラキル ノンクレジットオープニング1)
"Sirius" is the seventh single recorded by Aoi Eir, and her fifth major single. It was released in three versions, a limited CD+DVD edition, a regular CD edition and a limited Anime CD+DVD edition. The song was used as opening theme for the anime Kill la Kill, and "Kuroi Uta" was used as theme song for the PS3 game Drag-On Dragoon 3. A digital release of "Sirius (TV Size ver.)" came first, followed by the full track, and then the CD/DVD release. The B-side "Kuroi Uta" was digitally dropped a week prior acting as the lead-in for the CD release. The single peaked at #21 on the Oricon charts and charted for 14 weeks, selling 20,611 copies.
There are currently three versions of "Sirius" to be found in Aoi Eir's discography.
- Found on the "Sirius" single as track #1. It is the main version of the song which is set to the music video. It was later used on her sophomore studio album AUBE as track #4.
- Sirius (Instrumental)
- Found the "Sirius" single as track #4 on the CD+DVD and CD versions. This is the instrumental version.
- Sirius (TV Size ver.)
- Found the "Sirius" single as track #4 on the Anime CD+DVD version. This is the TV size version, used in the anime series.
- Official Website Info: CD+DVD | CD | Anime CD+DVD
- Sony Music Shop: CD+DVD | CD | Anime CD+DVD
- Oricon Profile: CD+DVD | CD | Anime CD+DVD