A term describing an unknown, "underground" hit tune that becomes such a club hit that it recieves wide public acclaim and commercial success - even though it was not made with those subjects in mind. The term is often used by cool and hip DJs and club kids that does not want to be associated with commercial, wide-spread music. The usual opinion in these groups of people follow a mathematical law, known as Greiff's Law of Credibility (see also Snickars' Law of Rarity). Examples of crossover hits: Bucketheads - "The Bomb (These Sounds Fall Into My Mind)" Everything but the Girl - "Missing" (Todd Terry Mix) Moloko - "Sing it back" (Boris Dlugosch Musical Mix) Blue Boy - "Remember Me" Stardust - "Music Sounds Better With You" Armand van Helden - "You Don't Even Know Me"