Is Mariah Carey hinting that Nick Cannon cheated on her?

Los Angeles - Mariah Carey is currently travelling for her Elusive Chanteuse Tour and appears to be doing a little more than singing.

The Hero hitmaker took to the stage in Tokyo on Saturday night and seemed to break her silence for the first time about her split from her husband two months ago.

30 minutes to showtime!! #TheElusiveChanteuseShow #worldtour #Tokyo #aishitemasu to ALL my Japanese fans!!! ?? ?? pic.twitter.com/eMfjAMrWWr

— Me. I Am Mariah (@MariahCarey) October 4, 2014

While performing Billie Holiday's classic Don't Explain, the 44-year-old singer changed the lyrics to the angry line of "I know you cheated, motherfucker," which left fans wondering if it was a sly reference to Nick.

Rumours that the America's Got Talent host, 33, had cheated on the brunette beauty, with whom he has three-year-old twins Moroccan and Monroe, began circulating in July after he admitted they were living separately, but he later denied that infidelity had anything to do with the shocking break-up.

However, Nick, who married Mariah in 2008, has proved things aren't good between him and his former spouse as he recently had his tattoo of the stunning star's name covered up.

The hunk had the inking, which is across his shoulders, transformed it into an elaborate tattoo of Jesus Christ and made sure he flaunted his new artwork during a night out at the Playhouse nightclub in Hollywood last week in celebration of his upcoming 34th birthday.