1) Italian melodic death metal band. AF was formed in 1995 by Matteo, Francesco and Mirko with the name of AnarKhiKa FreneSiA, and they originally played hardcore. After the first demo, Conto Alla Rovescia, the band decided to change their name in AF and evolved into a death metal band.
2) Pop rock band from Turkey
3) British techno act
4) AF is the shorter name for the band Artic Fusion. Please fix your tags!