List of famous people who are friends with Mariah Carey, listed alphabetically with photos when available. Every person on this list has either been seen in public with Mariah Carey, or is known to be acquaintances or best friends with Mariah Carey. From the people who have had a falling out with Mariah Carey to Mariah Carey's current best friends and buddies, these are the people that Mariah Carey has or had a relationship with at some point. If you notice that any of Mariah Carey's celebrity friends are missing from the list, you can add them below and make this list of Mariah Carey's friends that much better. List is made up of a variety of celebrities, including Will Smith and Jay-Z.This list answers the questions, "Who are Mariah Carey's friends?" and "Which celebrities is Mariah Carey friends with?"