The Green Day Rock Band demo is up on Xbox Live now and when you quit the demo an interesting image comes up (props to Kotaku for the screen shot). Take a look at the instruments in the above image.

Besides the standard instruments we already have, let’s first focus on the multiple microphones in the picture. This confirms an earlier rumor out there that Rock Band 3 will include vocal harmonies just like it was incorporated for The Beatles Rock Band. Also, an image of a keyboard appears giving us a hint of another peripheral on the way (is it time for some Billy Joel)? By judging the screen shot it looks like Rock Band 3 will give us the opportunity to have a 7 person band playing together in game.

Harmonix has been teasing that “you’ll be surprised at just how big Rock Band 3 will be” and considering the potential here, they weren’t kidding! I have enjoyed having local parties at my home and Rock Band is always a must play. It is amazing how everybody gets in to it especially after the initial fear of trying it out.

While I am excited of this tease, it will be interesting to see how this will affect current songs in your Rock Band library. Since Harmonix has let us export songs from previous versions or DLC will we be able to in Rock Band 3? My guess here is we will be able to but the imported songs won’t have the full capabilities of songs within Rock Band 3 or future DLC. Considering I have well over 500 songs in my library, I will be following this closely and looking forward to this Fall when I can pick up my copy.