Olivia Newton-John doing 'great' during second cancer battle

Olivia Newton-John's daughter says the singer is "doing great" as she battles breast cancer. Photo / Getty

Olivia Newton-John is "doing great" as she battles breast cancer for a second time.

The 68-year-old singer's daughter Chloe Lattanzi took to social media to reveal her mother is doing well and was spending the day "at a healing centre with lots of wild kittens".

Posting on her private Instagram, she wrote: "My mamma just sent me this [video]. She's doing great! At a healing centre with lots of wild kittens! Just wanted to let you all know how well she's doing. I love you guys. We love you! #f**kcancer #fighter #winning #ilovemymom (sic)"

Olivia Newton-John and her daughter Chloe Lattanzi. Photo / Getty

Newton-John announced back in May that she was "reluctantly" having to postpone her planned performances in the US and Canada because of her breast cancer diagnosis.

A statement posted on the star's Facebook page at the time read: "Olivia Newton-John is reluctantly postponing her June U.S. and Canadian concert tour dates. The back pain that initially caused her to postpone the first half of her concert tour, has turned out to be breast cancer that has metastasized to the sacrum.

For Immediate Release OLIVIA NEWTON-JOHN POSTPONES JUNE CONCERT DATES May 30, 2017 - Las Vegas, NV — Olivia...

Posted by Olivia Newton-John on Tuesday, 30 May 2017

"In addition to natural wellness therapies, Olivia will complete a short course of photon radiation therapy and is confident she will be back later in the year, better than ever, to celebrate her shows. There will be no interview requests accepted at this time as Olivia's focus is on her treatment and healing. (sic)"

Since she revealed her cancer diagnosis, Newton-John has received a multitude for support from her famous friends.

Olivia Newton-John and John Travolta in Grease. Photo / Getty

John Travolta - who starred alongside Olivia in Grease - said: "Olivia has always been an incredible human being and an inspiration to millions of people. If we all put our intentions for her to get through this - I know her so well - she will feel it, and it will support her. We love her and she loves us."