The Verge examines claims that Fenix Flexin’s Billboard Hot 100 song “Rubberz” may have been made largely or entirely with artificial intelligence. The rapper denies this, but the song’s abrupt shift from West Coast trap to ’80s-influenced UK synth-pop, alongside audible production oddities, has fuelled scepticism; the issue matters because AI-created music is increasingly entering mainstream charts without clear disclosure.

“Rubberz” reached number 58 on the Billboard Hot 100, while critics noted brittle hi-hats, degraded chorus vocals and abruptly ending reverb effects associated with generated audio. Five AI music detectors estimated only a 20–30 percent chance of AI involvement, though the article stresses such tools are unreliable; separately, image detectors judged the cover art and a promotional post more than 97 percent likely to be AI-generated, and writing tools found signs of AI-written lyrics. A songwriter cited low-quality digital artefacts and inconsistent backing vocals, while the lyrics were criticised for simplistic rhyming and limited meaning.