Sounds like: Drake
Last year, Erykah Badu previewed her mixtape You Cain't Use My Phone by releasing a remix of Drake's "Hotline Bling," the theme of which ended up informing the entire project. Especially because the two are friends and Drake chose to interpolate her "You Got Me" lyrics on "6 Man," when a voice that sounded very similar to his popped up two of the tape's tracks ("U Used To Call Me" and "What's Yo Phone Number"), everyone assumed it was an unannounced collaboration, similar to Andre 3000's on the last track.
In reality, Badu phoned up a rapper named ItsRoutine (whose birth name is actually Aubrey as well) to record the spots. In a since deleted tweet, she explained: "It’s not Drake. It’s one of my artists named ItsRoutine. He’s on my label and he can do anything. He sounds like him sometimes. His name is Aubrey as well."