Haydn was born in Toronto, Ontario, Canada. She is the daughter of comedian Lotus Weinstock and video artist David Jove, who was one of the first people to mass-produce LSD. Haydn's parents allowed her to choose her own first name. She reportedly chose the name "Helicopter" by which she was known briefly. When she was three years old, Haydn and her mother moved to the United States. For a time, they lived at the Brotherhood of the Source, a commune in the Hollywood Hills led by Father Yod. Haydn's father eventually rescued the two from the commune cult.
Career
Acting
Haydn began her career as a child actress at the age of seven. She initially appeared in commercials and moved on to television and film roles. From 1979 to 1980, she played Jenny Columbo, daughter of Lt. Columbo and his ex-wife, Kate Columbo/Callahan in the Columbo spin-off series Mrs. Columbo. In 1983, she starred as Belinda Capuletti, the smart and sassy daughter of Rodney Dangerfield's character in the comedy film Easy Money. She also appeared in the first Not Quite Human TV movie in 1987, and was a regular cast member on the syndicated sitcom The New Gidget. She has a bit part in the Michael Keaton movie Jack Frost for which Trevor Rabin composed the score.
Music
Haydn began playing the violin at the age of eight. She played her first professional gig in 1990. In 1992, Haydn graduated from Brown University with a BA in political science and began to pursue a career in music. Her debut album, Lili, was released in the fall of 1997 and was followed by Light Blue Sun in 2003 and Place Between Places in 2008, which she promoted with television and radio appearances such as The Tonight Show with Jay Leno, and NPR. NPR described "Place Between Places" as "A mix of neo-psychedelic flower child and rock star virtuoso...Heifetz meet Hendrix." She contributed to the score of the Edward Burns/Jennifer Aniston film She's the One, as well as several films with Hans Zimmer, including Disney's . Haydn won a fellowship to the Sundance Film Institute composing in 2009, and has composed the film scores for three films, Jacklight, The Horse Boy, and "The Lightmaker". In 2008, Haydn accompanied Roger Waters at the Coachella music festival when they played "The Dark Side of the Moon". Haydn also performed on Cyndi Lauper's True Colors Tour 2008. That same year she appeared on the cable TV series, Californication. In 2009, Haydn sustained neurological damage after being exposed to the pesticide Chlordane. While she was unable to write lyrics, she was still able to compose music. For the five years, she continued working on film scores and composed music for her fourth album, Lililand, released in September 2014.