If you read the music press as much as we do, you’ll see multiple references to Jim Osterberg as Mr. Pop or John Lydon as Mr. Rotten, groan when you first see it, and get over it. With the rise of hip-hop, however, the application of such a practice has become increasingly murky. Should Curtis Jackson be called "Mr. Cent" or Calvin Broadus be called "Mr. Dogg." It sounds ridiculous, but on one level, it’s no different than the above mentioned examples from the annals of rock.
The debate has been published in the latest issue of the Columbia Journalism Review, which seems to be against the double standard and for publications risking looking ridiculous by going with the moniker that has become standard for rock acts But Gawker points out the whole ridiculousness of the entire practice of using Mr. with a stage name, with a Method Man quote to boot. There are certain cases where it’s easier, such as Diddy being called "Mr. Combs," or Eminem beingcalled "Mr. Mathers."But still, the formality associated with the nominal prefix is somewhat alien to all of pop music, and especially rap, unless you’re writing for the paper of record. [Idolator]