Well, this is interesting.
Def Leppard and Activision have announced that the band's new music video for Dangerous will debut in Guitar Hero Live. Specifically in GHTV, the game's live music channels that plays lots of band's music videos.
You'll obviously be able to play along with the music video too, as is the way with the music rhythm game. It will debut later this week along with a show centered solely around the band.
This is a neat promotion I suppose, even if I'm not certain who it's for, as I seriously doubt it will be enough to persuade anyone to buy the game.. It's a cool add-on for those still noodling with the game though and shows Activision are still supporting the title.