Crystal Castles + Robert Smith? Ahh! Genius
Match made in heaven? Totally. Also, match made in the '80s. Crystal Castles first covered "Not In Love" by Platinum Blonde for their latest LP, released in April, and then decided to add The Cure frontman for a different version with some extra oomph.
Persistence pays, son. It pays.
Crystal Castles feat. Robert Smith -- "Not In Love" (free download)