Kami nomi zo Shiru Sekai: 4-nin to Idol  

The World God Only Knows OAD, The World God Only Knows OVA: 4 Girls and an Idol, Одному лишь Богу ведомый мир OVA, Светът, който само Бог познава: Идолите, 神のみぞ知るセカイ 4人とアイドル, The World God Only Knows: Four Girls and an Idol, Kami nomi zo Shiru Sekai: Yonin to Idol

The trio of Eli, Chihiro, and Miyako attempt to establish a musical group but ultimately seek assistance from Katsuragi. During this pursuit, they encounter Kanon and develop both friendships and rivalries with her.

An OVA bundled with the 14th volume of the manga, animating chapters 54 and 55 from the 6th volume of the manga.