The Rolling in the Deep singer expressed her utter heartbreak at the decision after being forced to cancel the shows following advice from her doctor.
In a statement she said: “I don’t even know how to start this.
“The last two nights at Wembley have been the biggest and best shows of my life.
GETTYThe Rolling in the Deep singer expressed her utter heartbreakRelated articles
I simply can’t crumble in front of you all and walk out on you in that way
“To come home to such a response after so long away doing something I never thought I could pull off but did has blown me away.
“However, I’ve struggled vocally both nights.”
The international megastar went on to admit over the course of her sold out Wembley shows she had struggled with her vocal chords, having to constantly clear her throat during her performances.
She added: “To say I’m heartbroken would be a complete understatement.
“I’m already maxed out on steroids and aids for my voice.
“I’ve considered doing Saturday night’s show but it’s highly unlikely I’d even make it through the set and I simply can’t