Alejandro Fernández Sparks Concern Over Greenish Tongue During Concert

Mexican singer Alejandro Fernández has become the subject of online speculation after a video surfaced showing a peculiar greenish hue on his tongue during a recent concert.

The clip, captured by attendees during his "De rey a rey" tour, quickly went viral across social media platforms. In the video, Fernández holds a prolonged note, and as he opens his mouth, a pale green coloration is visible on the back of his tongue. This visual detail prompted a flurry of theories among fans and internet users.

Speculation ranges from the mundane, such as the side effect of food, drink, or medication, to more serious concerns about oral hygiene or underlying medical issues. Some users commented on social media, suggesting it could be a reaction to a pill or simply a need for better tongue cleaning. However, none of these theories have been officially confirmed.

Fernández, affectionately known as "El Potrillo," has remained silent on the matter, offering no public explanation for the observed discoloration. This silence has only fueled further conjecture. The incident also brought to mind a health scare in 2025 when Fernández had to cancel several U.S. concerts due to salmonellosis, though he has since resumed his active career in regional Mexican music.