Justin Bieber's Coachella comeback

Justin Bieber's headline set at Coachella on Saturday night has ignited a fierce industry debate over performance standards.

The star, who has been largely absent from the stage due to health issues, delivered a stripped-back show featuring his greatest hits but lacking a live band or dancers.

Some fans contrasted his minimalist approach with Sabrina Carpenter's elaborate production, suggesting a double standard for male pop stars.

Despite the backlash, the performance was a major commercial success, with vintage Bieber merchandise selling out online within hours.