50 started a brief spat with Dr. Dre after tweeting that Dre had a feeling about his headphones. "Jimmy Iovine and Dre [are] mad at me cause I'm doing Sleek by 50," he tweeted. When TMZ caught up with Dre and asked him about it, he said, "I have no idea what you're talking about ... I've never heard of his headphones." Dismissed.