I have been to several concerts while pg, including Disturbed (metal) , with no worries at all, the only reason I wouldn't go is if I was worried about the crowd, which is why I didn't go to big day out...I could just imagine someone moshing into me off their face... but im sure the music is fine, maybe ur bub will even dance in there! Enjoy a concert while u can cause once bubs comes u won't have time!