Rock On.
Even if they weren't old enough to be advertised to by this picture, they're plenty old enough to be in today's picture of the day.
Up-and-Coming Guitar Heroes
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Thankfully, the guitars seem to have survived being "played" by these future stars. :) (kamoranakrre sure wouldn't want to have to go get new ones!)
...So, who wants to make the StepMania of guitar-playing games? (Never mind the fact that you need to somehow record the song without the guitar part...)