Classic, or not?

Back in the day everyone knew the classics; Pink Floyd, The Rolling Stones, The Beatles, Aerosmith, AC/DC, and many more. But what about the classics today? Are there any? I don't really know, nor can I think of any. When you ponder the music of the current generation, what comes to mind? Britney Spears, Christina Agulira, Miley Cyrus? God forbid those names be considered classics? Is that what really want our kids to look back on and say 'oh yeah, that's what our parents listened to.' Frankly, it's smut. If you listen to the lyrics of 2 out of the 3 songs we listen to on a daily basis, all you are going to hear is how, this guy wants to have sex with this girl, or how, this guys wants to drink and smoke all day. In the 60's through the 90's, or so, everyone had the same favorite bands, and the same taste in music. Now almost no one has the same taste, or favorites. Where did the classics go? Honestly, why can we not get over this shitty music hump, and go back to the classics that everyone likes.