Question: "Simple Song #3" is the lead single from a 2015 Italian comedy film set where? 

Context paragraphs:
What a Beautiful Surprise: What a Beautiful Surprise (Italian: "Ma che bella sorpresa" ) is a 2015 Italian comedy film written and directed by Alessandro Genovesi and starring Claudio Bisio.  It grossed $5,626,528 at the Italian box office.

An Italian Name: An Italian Name (Italian: "Il nome del figlio" ) is a 2015 Italian comedy film directed by Francesca Archibugi.

When Women Had Tails: When Women Had Tails (Italian: "Quando le Donne Avevano la Coda" ) is a 1970 Italian comedy film set in pre-historic times when “women had tails” and were hunted by cavemen.  It stars Giuliano Gemma, Senta Berger, and Lando Buzzanca.  It was followed by "When Women Lost Their Tails".

Simple Song Number 3: "Simple Song#3" or "Simple Song Number 3" is an original song sung by South Korean singer Sumi Jo.  The song was released as the lead single from the soundtrack album of 2015 film "Youth" written and composed by American composer David Lang.

The Legendary Giulia and Other Miracles: The Legendary Giulia and Other Miracles (Italian: "Noi e la Giulia" ) is a 2015 Italian comedy film written, directed and starring .  It is loosely based on the novel "Giulia 1300 e altri miracoli" by Fabio Bartolomei.

Italiano medio: Italiano medio (lit. " "Average Italian Man"") is a 2015 Italian comedy film written, directed and starred by Maccio Capatonda.

Belli di papà: Belli di papà is a 2015 Italian comedy film co-written and directed by Guido Chiesa and starring Diego Abatantuono.  It is a loose remake of the Mexican comedy film "The Noble Family".

God Willing (2015 film): God Willing (Italian: Se Dio vuole ) is a 2015 Italian comedy film directed by Edoardo Falcone.

Youth (2015 film): Youth is a 2015 Italian comedy-drama film written and directed by Paolo Sorrentino.  It is the director's second English language film, and stars Michael Caine and Harvey Keitel as best friends who reflect on their lives while holidaying in the Swiss Alps.  It is a story of the eternal struggle between age and youth, the past and the future, life and death, commitment and betrayal.  The cast also includes Rachel Weisz, Paul Dano, and Jane Fonda.

Si accettano miracoli: Si accettano miracoli is a 2015 Italian comedy film directed by Alessandro Siani ().  The film was released on January 1, 2015 to generally positive reviews and favorable responses.

Supporting paragraphs: Simple Song Number 3 Youth (2015 film)
Answer: Swiss Alps