Here's a move that just might add some sort of legitimacy to music social networking site Turntable.fm. Kanye West and Lady GaGa were apparently part of the $7.5 million investment deal we reported on last month, according to Business Insider. With this kind of investment going on -- read: investments backed by actual artists having their music played on Turntable -- you have to imagine this might help with the whole legality issue surrounding the website. It should also give it a higher profile, which will likely lead to even more investments in the near future. Well, as long as no one sues them first.