TK421

"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 13 October 2023.

Background
The title of the song refers 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."