During an interview back in the early 2000s, Mariah was asked to share her thoughts on Jennifer and iconically replied, "I Don't K**w her." Since then, rumors of a feud between the two stars swirled and in 2014, Jennifer cleared the air by saying they weren't true. Find out if Jennifer plans to make an appearance at Mariah's show in the clip above, and then check out what she recently said about Ben Affleck's "awful" tattoo.