Why Neil Diamond at the Billboard Awards?

Neil Diamond is quite old now, and it's very doubtful that many of the young age group that filled that audience even knew who he was. Look at who were up for the awards, Ke$ha, Beiber, Rhianna, Brittany Spears etc. All of them young enough to be Neil's great grandchildren. And the kids in the audience were mostly probably in the same age group according to all the kiddie screams. It's like that award show is for the teenyboppers. Now I could see Neil Diamond on the Grammy award. That award show awards more older refined singers.