Jesus commanded his followers to be "in the world, but not of it."  Part of being in the world is to be aware of the cultural "language" of the times so there can be mutual understanding between those  who follow Christ and those who don't.

In contemporary American culture it is especially important  to think about our culture because it comes at us so fast  and with so much visual force. Since we are rarely given  direct claims or arguments, but images and attitudes,  it is more important than ever to be reflective about what is assumed and implied in the cultural forms we are exposed to, whether it be cinema, television, books, or music.

“Christian concern about popular culture should be as much about the sensibilities it encourages as about its content. Popular culture’s greatest influence is the way it shapes how we think and feel (more than what we think and feel) and how we think about thinking and feeling.

“Popular culture in many ways is a very trivial matter. But its triviality, making it seem innocuous, also enables it to be extremely persuasive, and that is its most toxic quality. It unobtrusively provides the backdrop, scenery, costumes, minor characters, script, and background noise of much of our lives. When we arrive, the stage is already set, the lyrics and music written, our lines and movements already determined. Popular culture has the power to set the pace, the agenda, and the priorities for much of our social and spiritual existence, without our explicit consent. It requires a great effort not to be mastered by it.”

 --Ken Myers, All God's Children and Blue Suede Shoes, xiii, xiv