Links in thread are NSFW.
Eminem's "Not Afraid". A song depicting a recovering 'everything' addict, and his journey to show others that even in the toughest times, there is always someone there to help you.
Or one of my personal favorites, Lupe Fiasco's "The Show Goes On." A song that explains how even when you're at your lowest, you can come back, and become stronger.
Both are excellent songs (imo) that have very strong meanings behind them. Both songs also use crude lyrics (especially Not Afraid). Can the positive intentions outweigh the bad when listening to these songs?