"Hide and Seek" is the soundtrack for the closing credits of the short film "Escapement", written and produced by Erik A. Candiani. Henry collaborated with Candiani on the KARE11 (Minneapolis TV station) promo for the Sochi Winter Olympics, which was subsequently nominated for two Upper Midwestern Emmy awards, with a win for best Musical Arrangement/Composition. Henry's original song "In the Air" was commissioned for the 2016 film "Intersection: the Story of Josh Grant". Henry's live performances began immediately after her Blind Audition on "The Voice". They have included a Minnesota Music Coalition benefit at the Varsity Theater on February 20, 2014, and the Winter's Over Music Festival on April 25, 2015. YouTube produced a video of her single "Katie" at their YouTube Space in New York, which Henry released on January 19, 2015. Her Indiegogo-funded second EP, "The Orchard", was released on August 21, 2015. Henry collaborated with Moonhead Industries to release a music video for "Better", a single from the EP. An 11-track album titled "King Paten" was released on July 1, 2016. It had worldwide sales, charting on iTunes in Russia, South Africa, the UK, Cyprus, Israel, France, Canada and the US. On Sept. 2, 2016, she confirmed to writing a new album. On November 17, 2018, Holly released a song called "Float" under the name "Mooney". Again billed as Mooney, she released her self-produced album "softer" on October 25, 2019. Jonathan Frahm reviewed "The Immigrant" EP and wrote that Henry "displays the beyond-her-years nuance and musicality...delivering what is surely one of the most magnificent releases by a Voice contestant yet." Frahm followed up with a review of "Hide and Seek" in which he wrote about Henry's songwriting: "She’s writing for all to hear, sure, but each song that Holly writes is its own little world in which she is the only initial representative of its populous. It shows, too, in “Hide and Seek”, as she thoughtfully, mournfully weaves a new tale with regards to a wispy nostalgic quality which she so greatly inhabits. “Hide and Seek” may be one of her more instantly relatable works, as well, given how listeners could easily relate the song’s lyricism to a past hefty romantic issue of their own."