Guruguru Curtain

"Guruguru Curtain" (ぐるぐるカーテン) is the debut single by Japanese girl group Nogizaka46, released on February 22, 2012. It reached number two in the Oricon Weekly Chart and sold 136,309 copies in the first week. It reached number three on the Billboard Japan Hot 100.

Release
This single was released in 4 versions. Type-A, Type-B, Type-C and a regular edition. The first three editions are CD+DVD. Type-B includes the song Aitakatta Kamo Shirenai, which is a minor arranged version of AKB48's single Aitakatta.

The center position in the choreography for the title song is held by Rina Ikoma.

Production
Lyrics in the song describe experience of happiness and serenity in a lesbian relationship.