AC Sapphire is American singer-songwriter Annachristie Marie Sadler (born 16 July 1985) based in Portland, Oregon.

She debuted with the self-released album Elixir for the Human Heart (2005). She formed the group Sisters 3 with her siblings Beatrice and Cassandra Sadler, which released two albums and found success in the Philadelphia music scene.

After Sisters3 dissolved, Sapphire moved to the Mojave Desert and re-established her solo career with the EP Sibling Rivalry (2015).

She then relocated to Portland, where she released another EP, Omni Present (2020), and her long-delayed second album, Desert Car (2022). Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.