Dark Souls III OST - Dark Souls 3 (Main Theme) by Goldielou

Composer: Yuka Kitamura (DS II, Bloodborne, Sekiro, Elden Ring…) / Vocals: KOKIA, Tokyo Philharmonic Chorus / Other composers on the album: Motoi Sakuraba, Nobuyoshi Suzuki, Tsukasa Saitoh

Can be heard in the game menu.

This is a slightly shortened version (original track length: 2'46).