Aghh!! Don't know name of a song I heard there

So I went shopping at AE, and there were two songs I heard, and really like. One of them had like an electric piano thing which was pretty recurring and stuff. Not techno-style but just different. Another one was sung by a girl who was saying leave me alone when I shop (or something to that affect).

Anyone know those songs?

One is "shut up and let me go" by the ting ting tings.

The "electric piano" song, does it have sock puppets on it? if it is, then its Uncalibrated by Bridges and Power lines.