As part of my social media branding (yes, it's all BS but apparently readers like to have a "personal relationship" with their authors these days), I put out a steady stream of posts in FB/Twitter/Tumblr/wtfever talking about the music industry, bands I follow, what my cover models are doing lately, random excerpts from the book, etc.
I shared this item the other day. The two singers of Black Flag and Black Sabbath in the same place -- it is likely serious pranks followed: