My new favorite song is this one by Yael Naim. (Even her name is cool). I think I've listened to it one thousand times. It's called New Soul, and I know, it's on some Old Navy commercial or something, but still that doesn't ruin it for me. I so love her accent in the music.
CORRECTION: whoops! Thanks Melissa, I mixed up this song with the Ingrid Michealson song from the Old Navy commercial. (But I like that song equally well.)
Here's a link to the REAL New Song Mac Book commercial. And one to the Old Navy one. And now I'M the commercial.