NICK CANNON IN A LATHER OVER SOAP SLIP-UP

Sounds like NICK CANNON’s taking diva lessons from wife MARIAH CAREY, whose on-tour demands are legendary!

When the “America’s Got Talent” host stepped into the backstage bathroom at a Florida stadium charity event, he immediately bitched that the bar soap didn’t cut it because “it’s not the moisturizing kind.”

Nick’s peeps instantly dispatched a gofer, who scoured local shops and returned 30 minutes later with the proper rub-a-dub for Nick’s scrub. My SpyWitness, who later shook hands with Mr. Carey…er, Cannon, reports that his paw felt “silky smooth and dainty.”