While it's been no secret that Activision has been planning a Modern Hits sequel to its Guitar Hero: On Tour series of Nintendo DS games, the publisher has decided to make it official.

When Activision trademarked Guitar Hero Modern Hits, we had little to go on outside of the title and a suspected aversion to whatever Activision's calling a "modern hit." Thank goodness for ESRB leaks!

How, exactly, is Activision going to achieve a 300% increase in the number of Guitar Hero titles it ships? Tons of artist exclusive branded releases, for one, with Aerosmith, Metallica and (possibly) even Jimi Hendrix signed on to get the titular treatment.