Celine Dion cheers on the Boston Bruins as she makes a surprise appearance with her teenage sons amid Stiff Person Syndrome battle

Celine Dion made a rare appearance at the Boston Bruins vs New York Rangers hockey game with her twin sons on Thursday.

The My Heart Will Go On singer, 55, watched in amazement as she cheered with excitement from the sports box with her twins Eddy and Nelson, 13.

But her sons did not appear to share her enthusiasm as they watched the Bruins get thrashed 2 - 5 by the Rangers at the TD Gardens in Boston.

Celine - who is battling Stiff Person Syndrome - looked effortlessly chic in a chic camel trench coat, which she paired with a classy champagne silk blouse.

Keeping her look casual, the songstress paired her elegant ensemble with skin-tight cream jeans and suede boots.

Celine Dion stepped out filled with team spirit as she made a rare appearance at the Boston Bruins vs New York Rangers hockey game with her twin sons on Thursday

The My Heart Will Go On singer, 55, watched in amazement as she cheered with excitement from the sports box with her twins Eddy (right) and Nelson (left), 13

Her boys fully embraced their inner sportsmanship as they stepped out in matching Bruins jerseys.

But Celine - who recently was seen on a rare outing in NYC earlier this month - was attending the game for something more than being just an onlooker.

The Boston Bruins brought the legendary singer into their locker room to read the starting lineup before the team's game. 

Celine grew up in Quebec, where the Montreal Canadiens reign supreme in a different country from their rival Bruins. 

Yet, she stepped into the middle of the Boston locker room and passionately read out the lineup card like it was her own concert.  

'Thank you so much for getting ready for me tonight,' she started off, taking the attention of the locker room from Bruins head coach Jim Montgomery. 

With her sons in the locker room behind her, the icon did not stumble through players' names. 

Instead, she knew all of their nicknames to the approval of the Boston roster. 

But her sons did not appear to share her enthusiasm as they watched the Bruins get thrashed 2 - 5 by the Rangers at the TD Gardens in Boston

But Celine was attending the game for something more than being just an onlooker. The Boston Bruins brought her into the locker room to read the starting lineup

'Alright! Up front, Heino!' Dion sang, in reference to Bruins winger Danton Heinen. 

'You make me hungry, Pasta!' Dion yelled out to Boston's David Pastrnak. 

'My name starts with a C and we’re gonna go for "C-Mac!"' Dion said calling out Charlie McAvoy. 

She was also shown on the jumbotron during the game's second period, drawing a huge reaction from the crowd.  

But unfortunately, Celine, who was diagnosed with Stiff Personal Syndrome in December 2022, did not end up being a good-luck charm for the Bruins as they lost at home to the Rangers.

Last week, Celine admitted she is 'determined' to get back on stage and perform again amid her battle with the rare disorder .

As the mother-of-three shared a sweet tribute to her three sons on Instagram, Celine took the opportunity to praise her friends, family and fanbase for the love she receives.

In the caption of the photo, Celine penned to her 6.4 million followers, 'Today the world recognizes International SPS Awareness Day.'

'As many of you know, in the fall of 2022, I was diagnosed with Stiff Person Syndrome (SPS),' she continued. 

'Trying to overcome this autoimmune disorder has been one of the hardest experiences of my life, but I remain determined to one day get back onto the stage and to live as normal of a life as possible.'

Last week shared a sweet tribute to twins Eddy and Nelson and her eldest son Rene-Charles Angelil, 23, on Instagram as she revealed she is determined to get back on stage 

Celine, who is committed to return back to normality, posed alongside her beloved boys to mark Stiff Person Syndrome Awareness Day on Friday 

The star then expressed, 'I am deeply grateful for the love and support from my kids, family, team and all of you!' 

'I want to send my encouragement and support to all those around the world that have been affected by SPS. I want you to know you can do it! We can do it! Love Celine xx...'

Stiff Person Syndrome (SPS) is a degenerative condition that causes muscles to tense and spasm uncontrollably. Ultimately, it leaves sufferers resembling 'human statues as it progressively locks the body, leaving people unable to walk or talk. 

There is no cure for SPS, but there are steps that can be taken to slow down symptoms - something Celine revealed she is exploring.