Is it illegal or copyright infringing to copy information on artists from MySpace Music?
If you are talking about biographical information or history of the artist(s), there may be an implied copyright to the exact wording used if you just copy and paste it. But the rights would belong to the author of the text, not the artist it was about (if they were not the author). It is very unlikely in this situation that you would be pursued, especially if you did not make any money from your derivative work. They are not selling access to the Myspace page, so they are not losing any income through your actions. And, you can actually be helping them in a way by more widely disseminating the information and drawing paying customers to their music. It depends on what you plan to ultimately use the copied work for, but generally I wouldn’t sweat it. And if you properly cite the source of the quoted information, you further improve your position.