As of January 23, 2018, Yuki Kajiura's J-Pop trio Kalafina has been active for ten full years.
In celebration of this anniversary, the trio held a concert at Nippon Budokan. Fans were able to vote on the songs they wished to hear, which resulted in performances of normally rare songs such as "lirica" and "serenato". The concert ran close to three hours long, with featured guest musicians and a cross-section of both old and new songs in the setlist.
In an official blog post, each member of Kalafina shared their own personal messages to the fans.
"I am grateful to those who have supported us till now, to those who came to see us at the concert today, to those out there who listen to us, and to everyone who has found Kalafina."
"Tonight, being able to see all of you at Nippon Budokan, my heart was absolutely full with thankfulness for your coming to us."
"You always give me such happiness, and being able to see you is a treasured part of my life."
In addition to this, the trailer for Kalafina's first documentary film - entitled "Kalafina 10th Anniversary Film ～Yume ga Tsumugu Kagayaki no Harmony～" - was posted to Youtube on the TOHO channel.
This film promises to show much footage of Kalafina, documenting their activities over the years; it will also include something "about the future they will play for us". According to the film's official site, it will be shown in Japanese theaters for a two-week period, lasting from March 30th until April 12th.
Kalafina is famous composer/producer Yuki Kajiura's most long-running singing group, comprised of singers Wakana, Keiko, and Hikaru. "oblivious", their debut single, was released on January 23, 2008. Since then, they have regularly released new music, including themes for anime such as Kara no Kyoukai (The Garden of Sinners), Kuroshitsuji (Black Butler), Fate/Zero, and Puella Magi Madoka Magica. Their latest single is "Hyakka Ryouran", a theme for the anime Katsugeki TOUKEN RANBU.