Is the music of today,tomorrow's generations classics?

I decided to write this blog because I heard a song on the radio,which reminded me of a conversation I had with a friend a few months ago,the song in question was Boogie Wonderland by Earth,Wind and Fire.The reason this song was brought up was because it made him feel old is because he heard it on a Golden Oldies radio station,I must admit at the time I laughed,but,is the music of today,tomorrow's generation's classics?I mean you can buy classic 60's albums so does that mean in forty years time you can buy a classic 00's CD?with bands like Kaiser Chiefs,Radiohead,the Magic Numbers all cemented in history?Or will the face of music as we know it today become something we least expected?Will I hear a song from my youth or teenage years my early adult hood and find out its considered a classic?and then what?should I stop listening to those songs and listen to new music?What makes a classic a "Classic"?why are some bands remembered forever for example the Beatles?Personally I hate them I think they where over-hyped and played it safe with the first what 5-6 albums all about love this and love that,basically drawing in gullible fans,next thing you know its forty years later and Paul McCartney is still living off the Beatles name charging a fortune for a ticket to see him sing songs that he and three other people made famous.What gave the Beatles that kind of staying power?the same with the Rolling Stones,all geriatrics and yet still rocking the place like there is no tomorrow.Is that kind of thing still possible?millions of bands are formed around the world and disband before they even get noticed for those lucky enough to get noticed do they know they will never be forever famous?