Hmm, I'm not sure about the first pic, but I'm pretty sure the second picture is of the girls' band called Dirty Princess. Usually one of the singers performs completely nude on stage with the exception of wearing various bondage or sexy bdsm/leather style accessories and heels. They are super hot!! Their music is pretty good as well in my opinion. I've included a couple of live video performances below.
youtube.com/watch?v=d6TCbtaawR8
youtube.com/watch?v=mEeRn9zddFo
youtube.com/watch?v=_0iOWm8lGtU