Who is in Top Ten Music

Are you know who is in top ten billboard today? There are many artist listed in top ten. Some time the artist can standing for long time in top list, but some time only in several days. I get this list from Billboard hot 100 music charts, there are :

1. Flo Rida Featuring Ke$ha
2. T.I. Featuring Justin Timberlake
3. Kanye West
4. The All-American Rejects
5. Eminem, Dr. Dre & 50 Cent
6. Lady GaGa
7. Lady GaGa Featuring Colby O'Donis
8. Taylor Swift
9. Soulja Boy Tell 'em Featuring Sammie
10. Kelly Clarkson