Best selling record album worldwide in 2005:

"X&Y" (Coldplay)
According to the International Federation of the Phonographic Industry, Coldplay's "X&Y" sold 8.3 million albums worldwide in 2005, followed by Mariah Carey's "The Emancipation of Mimi" at 7.5 million units, and 50 Cent's "The Massacre," at 7.5 million.
Source: UPI, 3/31/2006

 
   
  Total sales of Classical music albums in 2005:

15.9 million
According to Neilsen/Soundscan.
Source: Billboard, 1/14/2006

 
   
  Total sales of Jazz albums in 2005:

17.1 million
Down 8.8% from 2004.
Source: Billboard, 1/14/2006

 
   
  Total R&B album sales in 2005 (which includes rap albums) :

143.4 million
Down 11.6% from 2004, according to Neilsen/Soundscan.
Source: Billboard, 1/14/2006