‘Fifty Shades of Grey’ loses top spot on Amazon’s best sellers’ list

After spending the entire summer atop Amazon's best sellers' list, "Fifty Shades of Grey" has been knocked off its mantle by a controversial Navy SEAL thriller.

"No Easy Day" follows a first-hand account of Bin Laden's murder according to a former member of SEAL Team 6, the group that carried out the raid mission. 

Amazon's most popular book hasn't even debuted yet with a release date of Sept. 11. 

Rather, Penguin Group's Dutton revealed "No Easy Day" a week ago, with a first printing of 300,000 copies.

The author went by pseudonym Mark Owen for the book's release to protect both himself and the SEAL program.

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