Very cool stuff. The music is homage to 40s big-band jazz, with organic instruments played over electronic rhythms. A host of stellar vocalists make this a high energy, delightful concoction that is old and new at the same time.
There are a host of artists out there doing this 'thing' -fusing classic sounds with modern electronics- and the results can be hit or miss. This is one of the best one I've come across and is fantastic.