A hotel doctor rushed to the room of this A list celebrity/singer after she was non-responsive when an assistant tried to wake her. The celebrity/singer had passed out from a combination of drugs and alcohol and the assistant was so freaked out she could not determine whether the celebrity/singer was breathing. It turns out she was and the doctor advised that the singer should sleep it off. The assistant said that was not possible because the celebrity/singer had to perform so the doctor gave her some type of shot which got her moving enough to at least be functional and another an hour later prior to her going to the performance.
Source:
http://www.crazydaysandnights.net/2013/07/blind-item-3_9.html