Anime: Attack on Titan Season 2 | Shingeki no Kyojin Season 2 | 進撃の巨人 Season 2
Song Title: Offer up Your Heart! | Shinzou wo Sasageyo! | 心臓を捧げよ!
OP/ED/BGM/Soundtrack etc: Opening / Opening 3
Composed by Revo (レヴォ)
Original Artist by Linked Horizon
Website - http://rinmsheetblog.wordpress.com/