Poll: When Hip Hop Goes Pop? Who's Next?

If, as they say, three's a trend, then we are knee-deep in one, folks. As hip-hop stars and pop stars continue to choose to work with one another, the two types of music continue to meld, mashing things up and making genre a thing of the past.
With everyone from Joe Jonas and Justin Bieber to [...]

Kelis Evelyn Keyes Nas Raquel Zimmermann