Cé­line Dion has can­celled all her sched­uled tour dates through April 2024 as she con­tin­ues treat­ment for a rare neu­ro­log­i­cal dis­or­der.

“I’m so sor­ry to dis­ap­point all of you once again,” the singer said in a state­ment on so­cial me­dia. “I’m work­ing re­al­ly hard to build back my strength, but tour­ing can be very dif­fi­cult even when you’re 100%. It’s not fair to you to keep post­pon­ing the shows, and even though it breaks my heart, it’s best that we can­cel every­thing now un­til I’m re­al­ly ready to be back on stage again.

A to­tal of 42 Eu­ro­pean dates have been can­celled, in­clud­ing stops in the Nether­lands, France, Bel­gium, Den­mark, Nor­way, Swe­den, Fin­land, Poland, Czech Re­pub­lic, Switzer­land, Croa­t­ia, Ger­many, Hun­gary, Aus­tria, Eng­land, Scot­land and Ire­land.

Ear­li­er this year, Dion said stiff per­son syn­drome was caus­ing spasms that af­fect her abil­i­ty to walk and sing.

“Un­for­tu­nate­ly, the spasms af­fect every as­pect of my dai­ly life, some­times caus­ing dif­fi­cul­ties when I walk and not al­low­ing me to use my vo­cal cords to sing the way I’m used to,” she said.

Stiff per­son syn­drome caus­es rigid mus­cles and painful mus­cle spasms, which can be trig­gered by such things as loud nois­es or light touch. The cause isn’t known, but it is thought to be an au­toim­mune dis­or­der. Se­vere cas­es can cause dif­fi­cul­ty walk­ing and hunched pos­ture.

Dion, who has five Gram­my Awards and two Acad­e­my Awards, is the best­selling fe­male artist of all time with hits like “I’m Alive” and “My Heart Will Go On.”

(AP) —