Aerosmith always comes ready to rock.Get your rock on with Aerosmith!  I did, and already got 5 stars on easy.  :-)  "Dream On" was the first major hit for the rock band Aerosmith, appearing on their debut self-titled album in 1973. Now all of you Guitar Hero™ III: Legends of Rock players will be able to try out their chops rocking to Aerosmith!  You will be able to download the track free of charge from Xbox LIVE® Marketplace. 

The song track will be free for a limited time only:

Saturday, February 16, 2008 2 A.M. PT (approximately)
to
Monday, February 18, 2008 2 A.M. PT (approximately).

The song is a free download through the weekend in celebration of the upcoming Guitar Hero®: Aerosmith® game. Guitar Hero: Aerosmith will be the first music-based game to feature a single band, and gamers will be able to experience Aerosmith's GRAMMY® winning career, from their first gig to becoming rock royalty.

Read the full announcement here:

Aerosmith's "Dream On" Free for Limited Time