The collaborative Gangsta Grillz mixtape between DJ Drama and 50 Cent, began as a joking idea at a party that Drama threw during the SXSW festival in Austin, Texas.  But word spread of this "joking" idea very quickly, and within one day the streets were buzzing with anticipation for the mixtape to drop on the publics' lap.

Here is DJ Drama's recap on how the entire Gangsta Grillz mixtape idea came about:

"We ran into each other at my party out there," he tells The BoomBox. "I think I said a joke to him real quick about [doing a Gangsta Grillz tape], like, 'You playing...,' because a while ago we were supposed to be doing a G-Unit tape that never happened and we've been discussing some things. I was with his man Rene from G-Unit, went backstage after the show and mentioned it to him. But after that we never really spoke."

Apparently Drama woke up the next day to a wave of phone calls and text messages with people already talking about the major 50 Cent collaboration.

"People were calling, saying 50 went on Twitter and said he 'bout to drop the tape.  So I was like, 'Cool. It's real.' It's good, because him doing that created a lot of anticipation and excitement and I'm looking forward to it."

Source: thisis50.com