In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

The Mannequin Challenge is a viral Internet video trend where people remain frozen in action like mannequins while a moving camera films them, usually with the song "Black Beatles" by Rae Sremmurd playing in the background. The hashtag "#MannequinChallenge" was used for popular social media platforms such as Twitter and Instagram. It is believed that the phenomenon was started by Dr. Dre in Kush's music video in 2010. The initial posting has inspired works by other groups, especially professional athletes and sports teams, who have posted increasingly complex and elaborate videos. Question: When was the song that is usually playing during the Mannequin Challenge released? Answer: September 13, 2016
The Mannequin Challenge is a viral Internet video trend where people remain frozen in action like mannequins while a moving camera films them, usually with the song Black Beatles by Rae Sremmurd playing in the background.