We got Mariah leaving The Beverly Hilton hotel when she reaffirmed her dislike for J Lo, in the most high school of ways. She's said it before, and is not backing down.
As for why Mariah's mood was sour ... we're told the limo that was supposed to take her to the event honoring Brett Ratner bailed on her. Seems she was her typical late self, so she had to take a Lyft.
May the feud never die!