Born into a musical family, Kunstler performed with his brother Dani in the group V'Havieinu before starting a solo career, releasing his debut album, From the Depths, in 2007.
He only began seriously pursuing music in seventh grade, when a friend who had just received a drum set for his bar mitzvah asked him to bring his guitar over to play with him.
Produced by Eli Yona, the album featured vocals from Dani and Lenny Solomon of Shlock Rock, as well as a song co-written with Peter Himmelman, "Show Me Your Love".
The following year, he joined Benny Friedman and Shloime Dachs for a fundraising concert at Congregation Ohab Zedek, with proceeds going to help Kunstler's hometown of Belle Harbor in the wake of Hurricane Sandy.
[6] In 2013, Kunstler, Yaakov Chesed bandmate Jake Polansky, Immanuel Shalev of The Maccabeats, and recording artist Simcha Leiner were judges at the third annual V'Ata Banim Shiru, an a cappella competition at Torah Academy of Bergen County that raises money for the Koby Mandell Foundation.