[4] Hana began working on music in 2006, with the help of producers and writers Ben Moody and Michael "Fish" Herring.

[12] In 2013, upon meeting producer BloodPop, Hana chose to take a break from recording to focus on learning production.

Hana has performed as her live backing vocalist and band member,[15][16] and the pair have collaborated on numerous songs and music videos.

[21] Hana received her first guitar, which her parents bought from a garage sale, as a Christmas present when she was in fifth grade.

[30] In 2005, a video of Hana performing in Montana reached producers and writers Michael "Fish" Herring and Ben Moody, who subsequently decided they wanted to work with her.

[32] Hana traveled with her family to Los Angeles to meet with Moody and Herring in 2005,[33] upon which they recorded some demos.

The self-titled EP is composed of three original songs—"These Two Hands", "Just a Phase", and "Together Forever"—and a cover of Leonard Cohen's "Hallelujah".

[42] In December 2008, Hana shared a song titled "Need", and began campaigning to have it included in the film The Twilight Saga: New Moon.

[49] Upon winning, Hana got to perform the song live alongside Incubus members Mike Einziger and Chris Kilmore in July 2011.

Some of the songs she covered include "First Day of My Life" by Bright Eyes,[51] "Hotel California" by the Eagles,[52] "Back to Black" by Amy Winehouse,[53] "We Found Love" by Rihanna,[54] "Always Be My Baby" by Mariah Carey,[55] "If You Return" by Maximum Balloon,[56] "Eyes Wide Open" by Gotye,[56] "Landslide" by Fleetwood Mac,[57] "River" by Joni Mitchell,[58] and "Wintersong" by Sarah McLachlan.

[61] Hana chose to take down her social media accounts and website,[62] as well as removing most of her earlier music from the internet, in order to rebrand herself from a clean slate.

[68][69] Around this time, Hana accompanied Grimes as part of the opening act for Lana Del Rey's Endless Summer Tour.

A video of the performance was filmed by Grimes and Jaime Brooks and shared through YouTube to promote the song.

She opened for Grimes on the European dates of her AC!D Reign Tour, which took place from February through March.

[74][16] In March 2016, The Fader premiered Hana's third new single, "Underwater", alongside a video shot on tour.

[76] In October 2016, Hana and Grimes released a video series titled The AC!D Reign Chronicles.

In December 2019, she appeared alongside producer Durante on the track "Days Pass", which was released as part of the compilation Anjunadeep 11.

[86] Hana and Durante collaborated again in 2020 on the tracks "13 Voices" and "Starglow", which appeared on the compilation The Anjunadeep Edition 300, released in April.

[87] The following May, Hana and Durante's three collaborative tracks were released together on an extended play titled 13 Voices EP.