That's because Ellie and Ke$ha don't have the same markets. Ellie can collect hits and semi-hits in Europe (and definitely in the UK), so getting a top20-30 song in the US is like a bonus for her, if you get what I mean.
While Ke$ha's main and most important market is the US, so if she starts collecting flops there, her label will definitely get worried.
One era doesn't kill an artist, but she'll be over if she pulls another Warrior and her next lead flops.
LOL. Lets not act like ellie is a big star. Her only WW semi-hit is Lights, which actually performed worse than Die young
Have ya'll been streaming this on youtube and Spotify? It makes as huge difference now! Just put it on in the background, forget about it, and then replay!