"RIP #Hef Thank you for being a revolutionary and changing so many people's lives, especially mine. I hope I made you proud," TV personality and former Playboy model Jenny McCarthy said on Twitter.
Hugh Hefner, founder of Playboy, has died; he was 91 →
"The truth of the matter is Mariah didn't do a sound check," McCarthy said.
Mariah Carey discusses 'horrible New Year's Eve' →