sometime between January and march of this year
Guitar Hero 4 is set to come out for the Nintendo DS between October and December this year.
Guitar Hero 1 came out in November of 2005.
As of 8/19/09, Guitar Hero: Smash Hits. The next to be released this year: "Guitar Hero 5".
I only know 3 out of 6, i know guitar hero 3 came out 2007, and guitar hero on tour and guitar hero aerosmith came out in 2008, I am not sure about the other 3.
Never. Guitar Hero was hung up by Harmonix earlier this year (2011).
The first Guitar Hero release was 8th November 2005, and Guitar Hero II was relase 7th November 2006. The previous answer claiming 2007 as the release date was the year for Guitar Hero III, made available 28th October 2007. Guitar Hero and Guitar Hero II were developed by Harmonix, but the rights to the series was owned by Red Octane, and with the aquisition of Red Octane by Activision, Guitar Hero III onwards has been developed by Neversoft, with ports to other platforms done by other companies. Harmonix have since gone on to create their own rock based music game series called Rock Band, the first in the series was released 20th November 2007.
it was invented in 2004
Guitar hero are hoping to sell the drum set next year. At earliest the end of January.
Guitar Hero World Tour, or Guitar Hero III Legends of Rock
1998
You can't get Guitar Hero for PSP, you can get it for Nintendo DS, and you will be able to get Rock Band: Unplugged for the PSP later this year.