I just came across a rather interesting band called The Dresden Dolls.

It's only drums and keyboard and they call their genre punk cabaret. 

I personally didn't find that many songs that I liked, but I like the idea of making music with only piano, song and drums and I think both of them seem kinda cool as people :) 

 

I quite liked this one though..and a song called Girl Anachronism and one called Coin operated boy.