Celine Dion is allegedly working behind closed doors to prepare for a grand return to the stage in Las Vegas

The insider revealed to the US Sun that the My Heart Will Go On singer was preparing a Greatest Hits comeback concert for Las Vegas.

It will mark her return following cancelling her tour due to the COVID-19 pandemic and her subsequent diagnosis of stiff person syndrome.

Dion is planning to make a "short run" 70-minute-per-night Vegas performance that won't effect her health.

The source shared, "Celine has signed off on singing again to audiences in November. She has worked incredibly hard to get back to a place where she can sing well and for some period of time.”

They went on to say, "She believes that she is ready to perform for over an hour.”

The insider revealed, "Her desire to return and entertain has been a huge driving force in her health battles. She never gave up and has been working in secret for months on her vocal strength and control."

Dion has not been in the public eye since she performed on March 8, 2020, in Newark, New Jersey, as part of her Courage World Tour after she was diagnosed with stiff person syndrome.