Oh No They Didn't! – Lady Gaga, Beyonce, Taylor Swift, and Katy …

Posted by admin on Jan 27th, 2012 and filed under Videos. You can follow any responses to this entry through the RSS 2.0. You can leave a response or trackback to this entry from your site

Rankings were determined by a combination of key factors including market share, exclusive Billboard chart data/boxscore information, and revenue. A team of 15 top Billboard editors then analyzed the value of these metrics …

Read the original here:
Oh No They Didn't! – Lady Gaga, Beyonce, Taylor Swift, and Katy …