That Warpaint band didn't seem very good.
And was that two different drummers between those videos?
Stella wasn't in the video as she wasn't with the band when they shot that video. She hasn't been playing with them too long (less than 1 year) but she's on their upcoming debut album.
Here''s a promo photo of them from around the time that video was made
and here's a photo of them now
And they're awesome. You watch, in just a few months, they're going to be HUGE. Pitchfork has gotten ahold of them and been promoting the hell out of them. I receive nearly 10 emails a day about them via google blog search. Trust me, I saw the exact same thing happen to Local Natives over the last 9 months leading-up-to and then following their debut album coming out. Warpaint's debut album comes out in just a few weeks.