As if Kelly's first album was released in 2009, both her and P!nk were doing that sound with their eariler albums while Katy was doing gospel or whatev
And yet Kelly still got OOTB left overs (OOTB has outsold Stars Dance and Revival combined and IKAG has outsold every Selup single despite not even being in her top 5 #1s in terms of sales)
Using 2008 album and single sales to drag Selena's 2015 album sales, Little Monsters their impact I guess
Meanwhile Katy is flopping with her current single after 2 underperformances while Selena got 3 top 10 hits and currently is having success with her quick lil collab