What's this new song that sounds like MGMT?

I've only heard it once on the radio, as I don't listen to the radio much, just cd's. Umm, it's ''soft'', not super slow, but nothing super peppy. Sounds ''happy''. The only lyrics I think I can remember is the chorus starts off and sounds to me like ''All the kids''...

I know it's hard to guess based on that small amount of vague information, but until I hear it again, I can't remember anything else. I heard them playing a different version with no words for 5 seconds on the emmy's on tv before a commercial, and it reminded me. Help me, it's killing me!! Thanks :-)