"TK421" is a song by American singer Lenny Kravitz, from his twelfth studio album, Blue Electric Light. The song was released as the album's lead single on October 13, 2023.
Background Kravitz said in a 2023 interview that the meaning of the song is "positivity, positive energy, positive spirit." The title was inspired by a scene in the film Boogie Nights, in which the character Buck Swope is trying to sell a stereo to a customer and claims that it needs the concocted "TK421 modification" to sound more powerful. Kravitz explained that the TK421 reference in Boogie Nights was an homage by writer/director Paul Thomas Anderson to the science fiction franchise Star Wars, in which TK421 is the identification number of a stormtrooper who received the task of guarding the Millennium Falcon imprisoned in the Death Star.
Video The song's music video, directed by Tanu Muino, was released together with the single. The video features Kravitz fully nude with his buttocks exposed.
Reception Mark Seliger of Rolling Stone wrote, "Lenny Kravitz is butt naked and loving life in the music video for his new single... 'TK421' is a Prince-esque blast of uproarious funk rock, with Kravitz pinning his sights on pure uncut ecstasy."
The Lagos Review wrote, "The single 'TK421' is a sonic masterpiece that transcends conventional genre boundaries, seamlessly blending the raw power of hard rock with the infectious beats of electronic pop."
Charts + Chart performance for "TK421" Chart (2023) PeakpositionItaly (EarOne Airplay)20 San Marino (SMRRTV Top 50) 18
Release history +List of release dates, showing region, release format, catalog, and label Region Date Format Label Italy October 12, 2023 Radio airplay BMG
References