Originally, "Dance in the Dark" was planned to follow the previous single, "Telephone", as a preference of Gaga's record label. The singer's own choice "Alejandro", initially saw poor reception radio-wise, thereby was not seen as a viable choice for a single. A quarrel then arose between Gaga and her label where "Alejandro" was ultimately chosen to be released. Through her account on Twitter, the singer remarked on the decision, "Alejandro is on the radio. **** it sounds so good, we did it little monsters." The single was officially sent to radio on April 20, 2010 in the United States.
She confirmed this on her twitter too. And anyways, I said most likely. I seems like with the information i presented, this is MORE likely to be a single, rather than Monster