Mariah Carey and Nick Cannon split seems to be getting to the diva much more than she initially showed as the "Hero" singer dissed her former husband in the middle of Billie Holiday's "Don't Explain" during her Elusive Chanteuse World Tour in Tokyo.

The angry tirade was immortalized by a video recording posted on social media YouTube by fan Roy Fernando where the multi-awarded Grammy artist expressed her sentiments over the Mariah Carey and Nick Cannon split.

"In a recording ... the star can be heard singing, 'I know you cheated motherf***er!' around four and half minutes into the song," according to MailOnline. "Billie wrote Don't Explain about her then-husband Jimmy Monroe when he came home with lipstick on his collar."

According to the British tabloid, Nick Cannon has been linked to several women after news of their breakup was reported by the press. Among the women linked to "America's Got Talent" host was Amber Rose, who also split with husband Wiz Khalifa when it was rumored that he hooked up with twins.

But the Mariah Carey and Nick Cannon split reports are not the only thing on the singer's mind as a number of fans were disappointed with the Tokyo show.

"The 'Hero' singer was lambasted by fans online after her show, claiming she had struggled to perform many of her songs and her famed voice was not what it used to be," the publication added.

The Mariah Carey and Nick Cannon split was attributed to her being very busy, a source previously told E! News. The comedian and host has been staying in hotels although he still visits their daughters from time to time.

"This has been going on for months. He does not have to work, but he's been throwing himself into gigs and projects," the source said.