Here's a photo you may not have seen, it is from the batch of photos taken (but not chosen) from the photo shoot for AC-DC’s Highway to Hell album cover back in 1979.  The Australian hard rock band was formed in Sydney back in 1973 by brothers Malcolm and Angus Young. While they are a hard rock band with blues-rock influences, they have also been widely considered a heavy metal band. But at the end of the day, it's all "rock and roll".