Not sure why the girl above me keeps yapping about poor recurrent sales when all of Katy's hits are extremely frontloaded
E.T.
Sales in 2011: 4,828,749
Total Sales: 5.8M (+1M)
California Gurls
Sales in 2010: 4,398,212
Total Sales: 5.7M (+1.3M)
And this goes for all her hits except Firework
Meanwhile, actual classics like Just Dance and Poker Face sold millions after their initial year
