L.E.F. (short for Loud, Electronic, Ferocious) is a dance and electro album released by Ferry Corsten in May 2006. It was his second studio album that was released under his own name. The word 'lef' also means 'guts' (as in: having guts) in Dutch. The album has spawned six singles. The songs include vocals by Simon Le Bon, Howard Jones, Denise Rivera, Debra Andrew, Guru, and Oz.