Originally Posted by leek

Let me show you how much you don't know. From the very same Billboard Hot 100 list you cited:

1 Beyonce - Single Ladies
Widely known as a very talented singer. Once learned and sang a song in french at the Oscars.

11 - Jason Mraz - I'm Yours
Performed "A Beautiful Mess" with a full orchestra at the Nobel Peace Prize Concert 5 days ago. Known for his rock/pop/reggae sound and vast instrument abilities.

12 Taylor Swift - Love Story
Song written by an 18 year old girl known for her amazing voice at such a young age.

15 Kevin Rudolf Featuring Lil Wayne - Let It Rock
I'm just mentioning this because Lil Wayne is the shit and this is a surprisingly catchy mix of rock and rap.

21 Rihanna - Disturbia
What a shitty voice Rihanna has... just kidding - she has a great voice. She serves as the cultural ambassador for the island of Barbados. Has amassed twelve top 40 hit singles in the U.S.

27 John Legend Featuring Andre 3000 - Green Light
Andre 3000 = amazing lyrical talent. Plays over 7 instruments. I don't even need to continue about this one.

I just skimmed the list, but there is also Secondhand Serenade, The Killers, O.A.R., Usher - all in the top 50. I'll let you research them yourself if you want their accomplishments. Hint: Usher can dance.

So after all of that - you're right - what a bunch of no-talent hacks. </sarcasm>