The Brunching Shuttlecocks may have been closed for months now, but looking through their archive still nets you cool sites every once in a while.
Specifically – Cancel Jams – like matter and antimatter, some songs simply cancel each-other out.
Examples:
Black or White [Michael Jackson] & Kodachrome [Paul Simon]
The Immigrant Song [led zeppelin] & Born In The U.S.A. [Bruce Springsteen]
Rebels [Tom Petty] & Empire [Queensryche]

Fun.