Guitar Hero Live got a new E3 trailer and shows off the GHTV game mode. GHTV is a 24 hour mode that lets people play music over a collection of music videos. There are tons of genres and bands to choose from and GHTV will be constantly updating with new content. No word yet on if any of this stuff is going to cost money or a subscription.
If you pre-order the game you get bonus content in GHTV including Avenged Sevenfold. I can't make this stuff up.
Guitar Hero Live releases on October 25th, 2015 for PS3, PS4, Xbox 360, Xbox One and Wii U.