Ke$ha. "Do What U Want" has outpeaked "C'Mon" and it should have more success in its run. And I would imagine the next ARTPOP singles will be more successful than the Warrior singles. They're both amazing albums though that don't deserve to underperform/flop the way they did
ARTPOP. Ke$ha was always a singles artist, so her sales didn't come as a surprise especially since she had already had a steep decline between Animal and Cannibal. Gaga on the other hand dropped from 1.1 million to 258K.
I love them both and both albums are seriously phenomenal, but are we really questioning this? ARTPOP's overall sales, worldwide stats and single sales are bigger. The only thing Warrior has on it is acclaim.