星のウタ" (Hoshi no Uta) is Pianissimo's second album, the previous album being Sora no Shizuku. It was first released on VOC@LOID M@STER 13, which includes 9 tracks both new and old and several or which are remastered. The album Hoshi no Uta is an all Kagamine Rin album.

Notable songs from the album include "Kudryavka" and "Insanity Girl", with new tracks being "RainRainRain" and also "Solea".

The album was available for order in Toranoana, but is no longer available for order. The crossfade of the album can be found in Niconico.

Hoshi no Uta Pianissimo
Released August 19th, 2010
Producer Pianissimo
Price ¥1,000
Illust. Wasabi
Track list
1. insanitygirl
Kagamine Rin
2. 泣き虫曇りのち晴れ
Nakimushi Kumori Nochi Hare
Kagamine Rin
3. 夕陽坂
Kagamine Rin
4. サクラクレパス
Sakura Kurepasu
Kagamine Rin
5. コバルトブルー
Cobalt Blue
Kagamine Rin
6. クドリャフカ
Kagamine Rin
7. StringTelephone
Kagamine Rin
8. 星空散歩
Hoshizora Sanpo
Kagamine Rin
9. Solea
Kagamine Rin
10. RainRainRain
Kagamine Rin
Sora no Shizuku Pianissimo
Sora no Shizuku