The 45-year-old singer revealed to Today's Richard Wilkins that Nicole phoned him straight after the run-in with notorious photographer Carl Wu at New York Fashion Week. Watch Keith's candid chat in the video above.
"She called me straight away ... any husband can relate to that," Keith said. "So luckily she wasn't seriously injured. It's the Wild Wild West, man, the police are handling it and we just move on."
While it's still unclear as to whether Nicole is pressing charges against Carl, TMZ reports that the Oscar winner "was furious and said she wanted to press charges".
Nicole later told the Associated Press "I'm up, I'm walking around, but I was shaken".
The scary collision was caught on camera view the footage below.
View slideshow: Nicole's shocking pap crash