By HOLLY THOMAS
Not healed: Jessie J, pictured at the Giles Deacon London Fashion Week show, will be unable to join Katy Perry on tour due to the severity of her foot injury
Jessie J has been forced to pull out of Katy Perry's California Dreams tour due to her injured foot.
The devastated Do It Like A Dude singer has said she is 'in tears' over the decision.
She has been replaced on the tour by fellow Brit Ellie Goulding.
The 23-year-old tweeted: 'Having a cry about having to pull out of the @katyperry tour. I am as upset as my #heartbeats believe me. My foot is just not healing as well as I hoped. :( '
Worse than expected: Jessie had to undergo a bone transplant earlier this month
Doctors have insisted that Jessie's foot wouldn't heal properly if she took part in the tour as planned.
The accident occurred in June after she fell off a podium while rehearsing for London's Summertime Ball.
Fellow Brit Ellie Goulding will replace Jessie J on the California Dreams tour
Not realising the severity of the injury, Jessie spent two weeks walking on it before discovering that it was broken, which aggravated the injury.
Jessie even underwent a bone transplant at the beginning of this month as part of her treatment.
'I've had to have full reconstruction. I've had my bone taken out and someone else's put in. I hope they were a tap dancer,' Jessie told The Sun.
Following advice: Doctors told Jessie it would be very unwise to put herself through the rigour of performing on the tour
Katy managed to perform as a DJ at the VMAs by spending much of her stage time sitting on an ornate throne.
She is trying to stay positive about her sad news, tweeting yesterday: 'Music isnt a cure but its a healer... I said that today. Felt right... I love making music x'
It is feared that Jessie may never be able to walk in heels again.
Katy Perry tweeted her good wishes to Jessie as she announced her replacement, writing on Twitter: 'Please welcome @elliegoulding to the #CaliforniaDreamsTour this November! @jessiejofficial feel better soon'