Seishun Gekijou (青春劇場) is a digital single by Berryz Koubouｘ℃-ute. The song, released on September 17, 2011, was used to promote the stage play Sengoku Jieitai. It was later included on the Petit Best 12 album, and a "Berryz Koubou Ver." and "℃-ute Ver." were released on the albums Ai no Album ⑧ and Dainana Shou "Utsukushikutte Gomen ne" respectively.
- Seishun Gekijou
- Berryz Koubou & ℃-ute Collaboration Concert Tour 2011 Autumn ~BeriKyuu Island~
- Kobushi Factory Live Tour 2015 ~ The First Ring! ~ - Kobushi Factory