In its second week, the single shifted additional 80,000 digital copies.
A digital copy may be found on the organization's website.
It has also sold over 2,100,000 digital copies as of April 2011.
It went on to sell 2,629,000 digital copies by May 2013.
Ten of her hits have sold more than 1 million digital copies each.
As of July 2012 the single has sold over two million digital copies.
I still do not think this is worth the 8$ for the digital copy.
The digital copy will not be a substitute for the books themselves.
The single has sold over 39,000 digital copies to date.
The song has sold 18,000 digital copies as of May 9, 2012.
