Album sales by the numbers:
Kelly Clarkson (WHITE)
Season 1, winner
Thankful - 2.6-million
Breakaway - 5.7-million
Ruben Studdard (BLACK)

Season 2, winner
Soulful - 1.8-million
I Need an Angel - 448,000
The Return - 226,000
Clay Aiken (WHITE)
Season 2, runner-up
Measure of a Man - 2.8-million;
Merry Christmas with Love - 1.3-million A Thousand
Different Ways - 511,000
Fantasia (BLACK)

Season 3, winner
Free Yourself - 1.7-million
Fantasia - 380,000
Carrie Underwood (WHITE)
Season 4, winner
Some Hearts - 5.5-million
Taylor Hicks (WHITE)
Season 5, winner
Taylor Hicks - 679,000
Chris Daughtry (WHITE)
Season 5, third runner-up
Daughtry - 2.5-million
What's the reason for the disparity. Will the same hold true for Jordin Sparks?
Get Some Answers Here.