'I'm so sorry': Kelly Clarkson's Australian tour in jeopardy as singer loses her voice and cancels Sunrise television performance 

American popstar Kelly Clarkson's Australian tour is in jeopardy after she cancelled her live performance on Sunrise on Thursday. 

The American Idol winner, 33, released a statement on Twitter citing illness and apologising to fans.

'I'm so sorry to all my fans about not being able to perform on Sunrise on this morning [sic],' it read.

'I have no voice, and the last thing I want to do is let anyone down, if I could be there and able to sing I would.'

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'I have no voice': Kelly Clarkson's Australian tour in jeopardy after American popstar cancels Sunrise performance... weeks after Sam Smith cancelled his tour dates

'I have no voice' Kelly Clarkson's Australian tour in jeopardy after American popstar cancels Sunrise performance... weeks after Sam Smith cancelled his tour dates

Hosts Samantha Armytage and David 'Kochie' Koch explained the pop talent was scheduled to make her only TV performance on Sunrise, but lost her voice overnight.

The news of her cancellation comes in the midst of Kelly's promotional tour of Australia.

The Grammy Award-winner landed Down Under on Sunday with her husband Brandon Blackstock and daughter River and has been carrying out a slew of appearances on radio and TV.

On Wednesday she featured on both Kyle and Jackie O's KIIS FM radio show and NOVA FM, belting out her songs for both shows.

Bad news: The American popstar released a statement on Thursday morning explaining she has lost her voice

Bad news: The American popstar released a statement on Thursday morning explaining she has lost her voice

Promotional duties: The 33-year-old had been carrying out a slew of promo commitments and appeared on the Kyle and Jackie O show on Wednesday morning 

Promotional duties: The 33-year-old had been carrying out a slew of promo commitments and appeared on the Kyle and Jackie O show on Wednesday morning 

Game: The mother-of-one also appeared on Smallzy's Surgery on Wednesday and read out lines of her songs in different accents 

Game: The mother-of-one also appeared on Smallzy's Surgery on Wednesday and read out lines of her songs in different accents 

The Breakaway talent then performed an intimate seven song gig for Nova fans in their Red Room on Wednesday night.   

'It was only minutes after that gig that Kelly lost her voice and was forced to make the upsetting decision to pull out of her Sunrise performance,' explains Kochie in a breaking news segment.

The presenter also revealed that Kelly has had to renege on meeting two 11-year-old competition winners Julia Maclean and Paige Peters, who Kelly had personally picked. 

Fan sandwich: The friendly star posed for a picture with Nova's Fitzy and Wippa, before performing an intimate seven song gig for fans at the radio show's red room. She lost her voice shortly after 

Fan sandwich: The friendly star posed for a picture with Nova's Fitzy and Wippa, before performing an intimate seven song gig for fans at the radio show's red room. She lost her voice shortly after 

Fun Down Under: The singer arrived in Australia on Sunday with her 11-month-old daughter River and has been introducing her to the country's locals

Fun Down Under: The singer arrived in Australia on Sunday with her 11-month-old daughter River and has been introducing her to the country's locals

Kochie revealed that Kelly's record label is attempting to reschedule the meeting with the young stars, who won a competition performing Kelly's songs. 

The Stronger singer is also due to perform at Sydney's The Star on Friday evening to promote her sixth studio album Piece By Piece – it's not known yet whether the gig will go ahead. 

The news of her illness comes just weeks after British singer Sam Smith had to pull out of his Australian tour, also citing problems with his vocal chords.

Disappointed: The In The Lonely singer was forced to cancel his remaining gigs in Sydney, Melbourne, Adelaide and Perth on doctor's orders due to a small haemorrhage on his vocal chords

Disappointed: The In The Lonely singer was forced to cancel his remaining gigs in Sydney, Melbourne, Adelaide and Perth on doctor's orders due to a small haemorrhage on his vocal chords

The In The Lonely singer was forced to cancel his remaining gigs in Sydney, Melbourne, Adelaide and Perth on doctor's orders due to a small haemorrhage on his vocal chords. 

He wrote in a statement: 'I am deeply, deeply saddened to tell my Australian fans, I have to cancel my Australian tour. I have been vocally exhausted for a while now however last night in Sydney I had a small haemorrhage on my vocal chords. 

'The doctors have told me I need to fully rest until my vocal chords have healed, otherwise this could become a huge long-term issue. I am so sorry to all who have bought tickets, I truly am. This kills me.'