Released: October 16, 2013 (digital download)
Caps Lock (stylized as CAPS LOCK) is the fourteenth studio album by the Japanese electronica band Capsule, released on October 23, 2013, by Warner Music Japan's sublabel Unborde as their first album release under the label. It was released digitally by iTunes on October 16, 2013. Caps Lock debuted at number seven and thirteen of the Oricon Daily and Weekly Albums Chart, respectively, with 11,805 copies sold in its first week of release.
In early 2013, the duo left Yamaha Music Communications, effectively shutting down the Contemode sublabel by releasing the best-of albums Rewind Best 1 & 2 in March as their last release from the label. On July 31, 2013, AsobiSystem (the duo's new management agency) and Warner Music Japan sublabel Unborde joined forces by releasing a compilation album AsobiTunes, which had new and old songs from different Asobisystem and Unborde artists. Yasutaka Nakata had contributed four tracks to the compilation: a new song entitled "Rainbow", a remix of Rip Slyme's "Nettaiya", an extended mix of Kyary Pamyu Pamyu's "PonPonPon" and Meg's "Secret Adventure". On August 3, 2013, the duo announced that they had officially signed with Unborde. A new album was announced, with details disclosed on August 29, 2013, with a promotional photo, album title and release date. On September 10, 2013, the covers and track list for the album were revealed.
In an interview with Japan Times, the songwriter-producer Yasutaka Nakata said that he wanted to do something new with the group on their transfer from Yamaha to Warner. He also said that the extreme editing that he had done on Toshiko Koshijima's vocals indicated that he did not want to perform the songs live, as he always just wanted to make music rather than presenting what he had finished by performance in front of people. None of the songs in the album were used as tie-ups for products and services, giving the album almost zero promotion. Meanwhile, Koshijima did not participate in any interviews about the album.
The album was released digitally worldwide on October 16, 2013, a week before its Japanese release date, by iTunes and managed to reach number one in Hong Kong, Singapore and Taiwan and number two in both France and the United States.
"Space" was used as an intermission song for the Wave Runner tour in 2015 and was also used as part of the Appleseed Alpha original soundtrack. "Control" was used as an interpretative intermission number in Kyary Pamyu Pamyu's 5ive Years Monster tour in 2016.