Diddy A Diddy and Dr. Dre collaboration? What happened to the whole East Coast vs. West Coast thing?

One might say that this is just business.

Diddy has been working with Dre and Interscope chairman Jimmy Iovine on his own line of Diddy Beats ear bud headphones. The product was developed through Monster, a company best known for its high-end audio cables, which previously introduced Dre's own Beats By Dr. Dre headphones and is set to unveil Lady Gaga's 'Heartbeats' audio line in the near future.

"We designed some ear buds called Diddy Beats that will be out next year," Diddy said of his collaboration with Dre. "We also have an iPod speaker base for your house coming out. That experience as a whole was good, we [Dr. Dre and I] had a great chemistry with each other."

Diddy recently signed to Iovine's label, Interscope, home to hip-hop heavyweights Dre, 50 Cent and Eminem.

The label deal and their headphone partnership are more than a little surprising. Not the least of which because the New York-based Diddy and the California-based Dre were both deeply embroiled in the supposed 1990s East Coast/West Coast feud that resulted in the deaths of their proteges, Biggie and Tupac.

Perhaps it's time to move on. Or perhaps there's nothing -- even a coast-to-coast hip-hop beef -- that can stand in the way of a a good business venture.

The announcement of the Diddy Beats line came fresh on the heels of the unveiling of the HP ENVY Beats 15, the fruit of Dre's partnership with Hewlett-Packard to produce a customized, audio-centric notebook computer, which will be released on October 22.

Diddy and Dre both have highly anticipated albums in the works. Diddy's 'Last Train to Paris,' which has been pushed back to an April 2010 release date. Meanwhile, Dre's perennially delayed 'Detox,' which he recently promised to finish by the end of this year, will drop in Neveruary.

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