On Monday, the Bruins made their annual visit to Boston Children's, reverse trick-or-treating and surprising the children with Bruins' goodies and signing autographs.
Through the years, there have been a number of memorable costumes, like Zdeno Chara as a bunny, or Dougie Hamilton's get-up last year as a 6-foot-5 baby.
This time around, the Bruins took it to another level, dressing up as the cast of the hit Disney movie, "Frozen."
Pictured in the photo below, left to right, are Kevan Miller as Kristoff, Matt Fraser as Anna, Matt Bartkowski as Sven the Reindeer, Seth Griffith as Hans, Torey Krug as Olaf the Snowman and Hamilton as Elsa, the Snow Queen.
"I've been able to do this in the past, and it's pretty enjoyable for us so hopefully it's just as enjoyable for the kids," smiled Hamilton.
The defenseman happily dressed up as Elsa, and had no shame in doing so.
"Not at all," he laughed. "I think it's fun, whatever can make them smile. It's all about fun for them, so no shame at all."
As for the rest of the crew, all of the Bruins were excited to spend a couple of hours going from room to room surprising the patients, and occasionally breaking into song with the movie's hit single "Let It Go" along the way.
"We're all fans of it, I've seen the movie and I'm a fan so I'm not going to lie about that," smiled Hamilton. "So it's fun to be able to be something that's popular and they all know it, and make them smile, so it's all about fun."
"Just here to put smiles on their faces," said Krug, who suited up in a head-to-toe costume as Olaf, complete with a big belly.
"They love it. It's a very popular movie, my niece loved the movie, always sings 'Let It Go' so it's a very popular thing, and makes them happy so that's the most important thing."
Krug was among those belting out the words at times, along with Bartkowski, who didn't mind sharing that he's seen the movie at least a couple dozen times.
"I've heard the song a lot of times, especially with my niece singing, so I get the videos a lot from my brother and his wife and she's always singing, so I know the lyrics," smiled Krug.
When the Bruins make visits every year to hospitals around Boston, they're usually recognizable in their Spoked-B jerseys.
"I think they've been pretty surprised," smiled Hamilton. "It's probably a little bit mind-blowing for them, just seeing us walk in there, and hopefully they're enjoying it."
The players began their visit meeting a young fan Joey, who is recovering from a brain injury after being struck with a hockey puck. That moment, although only a few minutes of what is a long recovery, made Joey and his mother light up.
"It's awesome to be able to give back and pretty special feeling to be in this position, so we take advantage of it when we can," said Hamilton. "It's fun to be able to help out and make their day and make them smile."
Whatever it takes to make them smile, whether that means walking into a hospital room with "Let It Go" blaring on the phone, wearing a blonde braided wig or simply lending a smile.
The halls they walked down, the rooms they visited, and the patients and families they met all seemed a little brighter after the B's left.
"It's really important," said Krug. "These are tough times for these families and any temporary relief you can give them is definitely beneficial. It's fun, you walk into the rooms, you see the smiles on their faces, and it's a good thing for sure."
The visit brought out plenty of smiles from the Bruins as well. All they had to do was look at each other.
"It's a toss-up between Fraz and Dougie," said Krug, on who he'd vote as the best costume. "Mine's a little too comfortable with the belly."
Watch a video from the visit below…