It has often been joked that in the aftermath of a nuclear war, only two things would survive: cockroaches and Cher.

But plenty of folks - including Kim Kardashian - believed a death rumor on Twitter Thursday night about the 65-year-old gay icon. Cher is quite active on Twitter but has not posted any tweets since Jan. 22.

Helping to propel the hoax was when Kardashian sent out this tweet to her 12.8 million followers on Twitter: 'Did I just hear Cher has passed away? Is this real? OMG.'