TK-421 is a term that has different meanings depending on the context. In the Star Wars franchise, TK-421 was the designation of a human male Imperial stormtrooper who served on Lasan before he was stationed on the Death Star battle station. In Lenny Kravitzs new song "TK421," the alphanumeric used as the title of the song has been interpreted in different ways, including as a reference to an imperial alphameric in Star Wars, a fictional stereo equipment from the 1997 indie film Boogie Nights, or phallic imagery.