Untethered Moon is the eighth studio album by American rock band Built to Spill. The album was released on vinyl for Record Store Day on April 18, 2015 and on CD and digital format on April 21, 2015. It is the band’s first album in nearly 6 years, since 2009’s There Is No Enemy, making it the band’s longest delay between studio albums. Martsch explained:
It is the first album to feature Steve Gere (drums) and Jason Albertini (bass), replacing Scott Plouf and Brett Nelson respectively.
The album was announced on February 5, 2015 along with a tour schedule beginning in March. The track "Living Zoo" was released via SoundCloud on February 24, 2015. The official music video for “Living Zoo” premiered on Noisey, March 25, 2015.