Question: When did the song lost boy come out?
Disambiguated questions and answers: question: When did the song lost boy by Ruth B come out?
When did the song lost boy by Troye Sivan come out?
When did the song lost boy by Jaden Smith come out?
answer: February 12, 2015
4 December 2015
November 17, 2017
question: When did the song lost boy by Ruth B first get released?
When did the song lost boy by Troye Sivan come out?
When did the song lost boy  by Jaden Smith come out?
When did the song lost boy by Ruth B first get released on contemporary hit radio?
When did the song lost boy by Ruth B first get released on Vine?
answer: 2015
2015
2017
May 9, 2016
January 2015
Natural Questions answer: February 12 , 2015 (from the Wikipedia article "Lost Boy (Ruth B song)")