Demi Lovato ‘heartbroken’ as she’s forced to cancel London show after falling ‘very, very sick’

MIAMI BEACH, FL - DECEMBER 31: Demi Lovato performs onstage at Fontainebleau Miami Beach on December 31, 2017 in Miami Beach, Florida. (Photo by Rodrigo Varela/Getty Images for Fontainebleau Miami Beach)

Demi Lovato has revealed she is “heartbroken” after being forced to pull out of her London show on Sunday night – just an hour before she was due onstage.

In an emotional tweet the 25-year-old singer said she was in tears after being diagnosed with swollen vocal chords, with her doctor warning that performing her O2 gig could jeopardise the rest of her Tell Me You Love Me tour.

LOS ANGELES, CA - NOVEMBER 19: Demi Lovato attends the 2017 American Music Awards at Microsoft Theater on November 19, 2017 in Los Angeles, California. (Photo by Neilson Barnard/Getty Images)

Demi Lovato has told fans she is ‘heartbroken’ after being forced to cancel her London show last night (Getty)

She wrote: “I write this through tears of frustration and sadness that I have to postpone my concert in London at the O2 tonight due to being very, very sick and with swollen vocal chords that were examined by an ENT (dr.)

“If I go on tonight and injure my vocal chords any more I could potentially have to cancel the rest of my tour.”

NEW YORK, NY - JANUARY 24: Demi Lovato performs live exclusively for American Airlines AAdvantage Mastercard cardmembers at New York City Center on January 24, 2018 in New York City. (Photo by Cindy Ord/Getty Images for Mastercard)

The singer, who is suffering with swollen vocal chords, was told by her doctor that performing last night could put the rest of her tour at risk (Getty)

She added: “I’m so so so sorry to disappoint any of my fans in London that have travelled hours to be here by plane or car, and to all of the fans that got these tickets for their birthday, holiday or any other special occasion.

“It breaks my heart to let you down. Just know I feel your frustration and I wouldn’t do his unless I absolutely had to.”

Demi Lovato’s apology for cancelling tour date (Twitter)

The show has now been rescheduled, with concert producer Live Nation confirming: “The show will now take place on Monday June 25th.

“All tickets will remain valid for the new date. Please contact your point of purchase for all ticket inquiries.”

Lovato’s fans soon flooded social media with support for her – once again leaving her in tears.

The “Fall In Line” singer later tweeted: “My fans are seriously the best… I can’t believe how much love and support I’ve received today.. the video of my fans singing skyscraper outside of the venue made me cry ”

This comes just a week after the US star issued an apology over what was deemed a sexual assault prank following huge backlash on Twitter when she told fans that she hired a prostitute to “surprise” her friend.

MIAMI BEACH, FL - DECEMBER 31: Demi Lovato performs onstage at Fontainebleau Miami Beach on December 31, 2017 in Miami Beach, Florida. (Photo by Rodrigo Varela/Getty Images for Fontainebleau Miami Beach)

Lovato later thanked fans for their support (Getty)

In a since deleted post, she wrote: “I hired a lady of the night in Vegas and sent her to Max’s hotel room to surprise him.

“She walked into his room without permission and grabbed him in his ‘area’ and he freaked the fuck out hahahaha.”

As her followers highlighted to her, the stunt could be considered sexual assault.

Lovato responded: “I swear I could tweet something about craving jelly beans and it would offend someone.”

SUNRISE, FL - DECEMBER 17: Demi Lovato performs at Y100's Jingle Ball 2017 at BB&T Center on December 17, 2017 in Sunrise, Florida. (Photo by Gustavo Caballero/Getty Images for iHeartMedia)

Last week the singer faced backlash when she revealed she ‘pranked’ a pal by hiring him a prostitute (Getty)

Lovato later reminded people of her own experiences with sexual abuse.

“For all of those coming at me rn, listen to the lyrics of Warrior and maybe you’ll have more compassion for someone who made a simple mistake. Of all people I know about sexual abuse. You don’t have to educate me,” she said.

However, as fans refused to back down, Lovato said: “So sorry if anyone was offended ”