Just when you'd cashed out your library of songs on 'DJ Hero,' Activision is coming back with the sequel. The lineup for 'DJ Hero 2,' set to hit stores this fall, includes joints from Kanye West, Dr. Dre, Metallica, Lady Gaga, Rihanna, the Chemical Brothers and 85 others. To prep players for the second installment, Activision plans on releasing a free mix of Lady Gaga's 'Just Dance' and Deadmau5's 'Ghosts 'n Stuff,' available for download from June 8-14 on the PlayStation and Xbox Live Marketplace.

New features for the game include a head-to-head scratch battle mode, and the addition of a mike for those that want to sing or rap along to on-screen lyrics. And where 'DJ Hero' only allowed for users to trigger pre-recorded scratch patterns, the sequel gives players the ability to freestyle scratch, an option that allows for more interactivity with the songs.

"With new social game modes, the inclusion of full microphone support, all-new levels of creative freedom and an amazing soundtrack, DJ Hero 2 is the ultimate mixer of music and friends," says David Haddad, Chief Operating Officer of Guitar Hero.

'DJ Hero,' originally released in October 2009, sold 123,000 units in its first month in stores, going on to ship upwards of a million units to date. The game included songs from DJ Shadow, Eminem, Daft Punk and a host of others, available in a special 'Renegade' edition tailored to fans of Em and Jay-Z.