Lana Del Rey was forced to lead Glastonbury fans in an a capella performance of her final song after the power to her microphone was cut out.

The American singer turned up 30 minutes late for her set on the Other Stage on Saturday night before mouthing an apology to the crowd.

Some festivalgoers booed and chanted “we want Lana” but when Del Rey finally took to the stage after 11pm, her late arrival meant her set clashed with Glastonbury’s strict curfew.

She cut several songs from her set, telling fans: “I was so f------ late that I am about to rush this set.”

Her black collared outfit was removed to reveal a white dress decorated with a religious pattern paired with an elaborate diamond-style headpiece.

“If they cut power, they cut power,” she said. “I’m super f------ sorry, my hair takes so long to do.”