Well about Gaga I can easily say that it's because Beyonce's been earning the big cash since she was in DC (which means since 97) while Gaga is earning since 2009 (actually the same goes for Taylor and even Miley)
She knows how to get her money, here's what I don't get as far as those networth things goes how is katy worth 95mil according to celebrity networth and Rihanna worth 90 with 7 albums and more time in the industry, are these sources reliable to an extent?
