(CNN) - Maybe it's "Bieber Fever," but album sales are on the rise for the first time since 2004.
In all, 330.6 million albums were sold in 2011.
Digital albums saw a big jump, up 19.5 percent, which made up for a slump in CD purchases.
Singer Adele saw the most sales. Her album 21 was the biggest seller since Usher's Confessions in 2004.