Ooooooooookay, it's gotta be Ani.
Here's Ani DeFranco with "Both Hands." The scene in the movie in which it plays is pretty cute; tangibly and painfully awkward, but in a delightful way.
I'm including a studio version, but like all things Ani...it's worth tracking down a live version. OH WAIT HERE'S ONE NOW.
Man, everything that is awesome about performing...you can see it in her face. I love it.
It's a great song. By a great artist. Off a great soundtrack...but don't look it up just yet so I can feature more songs from it and you'll all think I'm poetic and deep.