Question: What song was sung by Arijit Singh in the 2016 Indian romantic drama film written and directed by Karan Johar?
Sentence (from "Ae Dil Hai Mushkil"): Ae Dil Hai Mushkil (English: "This Heart is Complicated" ) is a 2016 Indian romantic drama film written and directed by Karan Johar.
Relevant evidence: Yes