Not that I’m a fan, but I didn’t see Lady Gag Gag.
Seems Billboard only calculated U.S. sales. Lady Gaga made a boatload of money in 2012 touring Europe, Asia, Latin America and even a stop in South Africa. Her 2011 tour was the 16th highest grossing tour ever. Her tour returns to the United States this year where you can guarantee she'll make the Billboard top 40 once again.