Via: AllHipHop News It seems a cold war between former allies Dr. Dre and G-Unit frontman 50 Cent is on the horizon, after Dr. Dre responded to 50’s tweets surrounding his new Sleek line of headphones. On February 14th, 50 Cent took to Twitter and claimed that Jimmy Iovine and Dr. Dre are mad that he launched Sleek, his own line […]