Fenix Flexin's "Rubberz" enters Billboard Hot 100 amid AI-generation allegations

Fenix Flexin's "Rubberz" appears on the Billboard Hot 100 dated 8 August 2026. Producer Medasin posted an Instagram breakdown citing AI hallmarks, including a "Sonauto.mp3" suffix in an old Fenix video. Sonauto was Treblo's name until a rebrand two days before release. Fenix denied the claims on X, attributing his sound to auto-tune, reverb and a "fake UK accent." Treblo's own unvetted detector flagged the track "very likely Treblo."