Dr. Dre even made an appearance. Don't be surprised if there isn't a different kind of collaboration in store down the road. "I'm gonna send her some tracks, and if she hears something she likes, then... more 

Dr. Dre even made an appearance. Don't be surprised if there isn't a different kind of collaboration in store down the road. "I'm gonna send her some tracks, and if she hears something she likes, then we're gonna get together," the beatmaker told Rolling Stone. John Shearer/WireImage.com - November 23, 2009 less