Nick Cannon tapes America's Got Talent at Madison Square Garden on April 2. Credit: James Devaney/GC Images

They say all press is good press, but Nick Cannon's recent whiteface publicity stunt isn't going over well at all. On April 2, he attended a New York Knicks game at Madison Square Garden and received plenty of boos when he took the court to film for America's Got Talent during halftime. 

"The entire MSG booed Nick at the Knicks game tonight," an eyewitness told Us Weekly. "He even said on the mic, 'Go ahead. Boo louder. Get it outta your system!'"

The America's Got Talent Twitter handle tweeted a photo of Cannon, 33, without his new cheetah-print hair or whiteface at the Knicks game. 

"Game face on. @NickCannon is all set for halftime at the @NYKnicks game tonight - we're filming for #AGT Season 9!" the caption read

Mariah Carey's husband opened up to Rachael Ray on her eponymous talk show, which airs Friday, April 4, about the recent controversy. 

"I mean, some ultra-sensitive people [are] feeling a way, but I did that on purpose," he told the professional chef. "I’ve been planning this over a year, to release my album on April Fool’s Day, call it White People Party Music, and dress up as that character, Connor Smallnut. The funny thing is, if you listen to the album, or kind of go into the back-story of that character, that character is an ultra-sensitive character who hates Nick Cannon, and is offended by the album title 'White People Party Music.' Yeah, and, you know, some people can’t take a joke, but I wasn’t trying to reach those people anyway."