Rammstein is a great band. German poetry if you didn't know. I like their song 'Stripped', it is one of their few songs done in English. As a mainstream band their message is quite in-your-face about how crap society is at the moment compared to their contemporaries. Let me see you make decisions, Without your televisions, Let me hear you speaking, Just for me... Other mainstream bands I would recommend are System Of A Down, their latest song 'Boom' is an attack on the US and Israeli policy.