Rock Star Fancy Dress

So my best friends Dad has a fake festival in his garden every year to raise money for charity.
This year is fancy dress and the theme is Rock Stars.

The festivals tomorrow so i already know who i'm going as:
Basically her Dad is a huge ACDC fan and was distraught when Axl Rose joined, so i'm going as Axl, but in my ACDC tshirt, to annoy him...

Whats some other good rock star fancy dress ideas?
Think a little outside the box :)

gene simmons and slash seem to be popular ones

or go as ozzy osborne and get a friend to go as her majesty sharon osborne