Tango is a lively, expressive, and unconventional genre. Through constant evolution and connecting with different genres, it is often considered Alternative music.
Old tango songs are remixed or composed into completely new records, usually mixing elements of Tango, House, Jazz, Rock and even Hip-hop. That is how the subgenre electrotango, came about existing. Gotan Project and Bajofondo are the well known artists of the subgenre.