We would've never guessed Mariah Carey could use a singing legend's song to reveal Nick Cannon cheated on her LIVE in concert…
But there's a first time for everything, butterflies!!
[ Video: Mariah Carey's Tokyo Performance Was A DISASTER! WATCH!]
In her Tokyo show Saturday night, Mimi performed Billie Holiday's You Don't Know What Love Is in between hits for her Elusive Chanteuse World Tour.
The song, already about heartbreak and the value of love, cuts deep — but Mariah added another level of pain by adding the lyrics:
"I know you cheated mother****er."
We're pretty sure this is a direct jab at Nick, since rumors of the couple's breakup and pending divorce have been swirling harder than a Mr. Frosty cone!
Ch-ch-check out the video (below) and catch the lyrical addition around the 4:30 mark! Listen close for controversy!