Alltime a favorite for me is The Postal Service. The Postal Service is a project formed by two great artists named Dntel and Death Cab for Cutie.
Voice, computer sounds mixed together like a bomb of energy. Such Great Heights is the most famous song of their album Give Up. The album is meant as the first and last product of these top artists. Top products are often scarce. Therefore, make sure you listen the album Give Up. On repeat please.