MF DOOM was the masked persona of Daniel Dumile, a British American rapper and producer who first released Operation Doomsday in 1999 under that name. Wearing a metal mask inspired by Marvel villain Doctor Doom, he became a central figure in underground hip hop, especially through Madvillainy, his 2004 album with Madlib as Madvillain. His dense rhymes and sample rich production built a lasting cult following. After his death in 2020, short clips of his name and voice kept circulating in edits as a compact tribute and recognition signal.