Lyrical/modern duet song for two girls?

My friend and I have been looking for a song for our lyrical/modern duet for a while now and we really need to pick one so we can start choreography. The songs we've picked that we like are:

Let Go by Frou Frou

The Garden by Mirah

Black and Gold by Sam Sparro

Unfortunately we can't use any of these because our studio has used them either last year or the year before and we really don't want to use a song that has already been done. If you know any songs like these, please share them. We've been looking for so long... thanks in advance for your help.

p.s. if possible, nothing too overused (i.e. Imogen Heap's Hide and Seek)