Some interesting videos ahve popped up showing us some gameplay from DJ Hero..
DJ Hero – Hard Difficulty Game Play
Tears for Fears Shout vs. Eric Prydz Pjanoo
DJ Hero – Expert Difficulty Game Play
KRS-1 Jack of Spades (DJ Shadow Mix) vs David Bowie Lets Dance
DJ Hero – Medium Difficulty Game Play
Chuck Brown vs The Zombies
DJ Hero – Easy Difficulty Game Play
Benni Benassi vs Black Eyed Peas
So E3 is next week and Activision will be showing off their latest games including the much anticipated DJ Hero. This is the official trailer which also confirms we’ll hopefully be getting an October launch.
update – Gamestop in the United States confirms the release date as 27/10/2009.
As of May 2009 this is some of the confirmed tracks for DJ Hero’s release…
As well as mixes using individual songs from both Eminem and Jay-Z, which will include Jay-Z’s “Izzo (H.O.V.A.)” and “Dirt Off Your Shoulder”, there will also be a Eminem & Jay-Z mix song.
Eminem also confirmed that he will have more tracks included later on in the year as downloadable content for the game.
DJ Shadow
Gameinformer have recently conducted an exclusive DJ Shadow interview regarding the upcoming DJ Hero Release. You can visit the site directly for the interview or click more to read it right here.
So Activision have posted some artists mockups of the controller for the upcoming, and much anticipated DJ Hero game. 
These images were posted on the DJ Hero Twitter Account with the news later being broken by Kotaku.