They call that music?

At the risk of sounding like an old person...I love music, I listen to just about anything from classical to country, pop to metal, it's all in there.  I don't care for rap, though a few songs I enjoy.  Lately though I have to say the recent trend in music to get more and more explicit is irritating.  I like to listen to a particular local radio station, which is pretty much pop w/ a bit of this or that thrown in occasionally.   Lately more and more of the music is SO not appropriate for my kids to listen to that I have to change the station.  Now I realize we listened to what we THOUGHT was explicit back in the day...but I don't remember it being anything like it is now.  For instance Katy Perry's new song "Last Friday Night" Click for the lyrics in case you'd like to read them. Ummm...YIKES!  I think ok, if an adult wants to listen to that...well so be it, but an impressionable teen?!  Which is this station's target audience, so really?!  Why is it a hit?  Is it the beat? Is it the lyrics?  Why?  I didn't care for the song even before I stopped to listen to what it was saying...it just got worse after that.  This isn't the only song, lest ya think I'm picking on Katy Perry.  Though she does have a number of songs that I wouldn't deem appropriate for anyone under 13 and that's pushing it.  There are quite a few, and lets not even get into the other genres death metal, screamo, etc...So much junk there.  I know we have freedom of speech and need to maintain it, but for the love of God some of this stuff is just NOISE!  On the edge of nixing that station..