So are they a couple, or aren't they???
But is that the truth?
Other reports have come out with their friends telling a different story.
The duo was seen with another gal pal in St. Barths on Saturday (above), which happened to be Brett's birthday, and Mariah made sure to give him an eyeful of boobage as a present.
Brett held tight to Mariah but not to their other friend, but we're not sure how much to read into that. We're sure they'll make things official in due time if their friends are telling the truth.
And for all of the Elusive Chanteuse fans out there, you can still get lots of tickets to her Las Vegas shows. In fact, blocks of 10 tickets are still available right near the stage, despite having been on sale since mid-January.
[Image via FameFlynetpictures.]