Maroon 5, Fergie are No. 1 for year on iTunes

Maroon 5 and Fergie hold the top spots on iTunes' year-end sales roundup.

Maroon 5's "It Won't Be Soon Before Long" led the iTunes list.

The online music store released its top-selling albums and singles Tuesday, though it declined to release actual sales figures.

Maroon 5's sophomore album, "It Won't Be Soon Before Long," was the No. 1 seller on the site, followed by Amy Winehouse's "Back to Black" and Kanye West's "Graduation." Winehouse and West are also leaders heading into the 50th annual Grammy Awards -- he has eight nominations, she has six.