India, Sept. 4 -- Lady Gaga abruptly postponed her 'Mayhem Ball' concert in Miami on Thursday night, pulling the plug just before showtime after doctors and her vocal coach advised against performing due to severe strain on her voice.

The pop star broke the news to fans through Instagram Stories, apologizing repeatedly and saying she hoped to reschedule 'as quickly as possible'.

She explained the decision came after her voice 'was extremely strained' during both rehearsal the night before and warmups the same evening.

"I am really so so sorry but I need to postpone tonight's show in Miami," Gaga wrote. "There is a significant risk based on all our combined experience with a show like ours . even though this was a hard and agonizing dec...