LEF (born Lorenzo Esposito Fornasari; November 20, 1977) is a vocalist, record producer and film score composer. He worked with Bill Laswell, Ben Harper, Serj Tankian (System of a Down), Isabella Rossellini, Eraldo Bernocchi, Nils Petter Molvær, Eivind Aarset, Jamie Saft, Pat Mastelotto, Colin Edwin (Porcupine Tree), Markus Stockhausen, Kenneth Kapstad from Motorpsycho, Tony Wakeford, Trevor Dunn, Giovanni Lindo Ferretti, Raiz, Enrico Gabrielli (Pj Harvey, Calibro35), Sigillum S, Gianluca Petrella, Fabrizio Puglisi, Ståle Storløkken, Hamid Drake