Boston Children's Hospital is the last place you'd go for a concert.
But on Sunday, 6-year-old Jordan Nickerson was serenaded by pop star Taylor Swift.
"He saw her guitar and he said, 'Are you going to sing for me?' And she did and it was just unbelievable," said Johnathon Nickerson, Jordan's father. "I was crying just because I was so happy for my little man."
Jordan was singing and dancing with Swift. You'd hardly know he was a sick boy.
But it was all too obvious when NBC 10 met Jordan on Tuesday.
The 6-year-old was tired and not feeling well after a bout of chemotherapy. He didn't want to talk much, but smiled when Swift is mentioned and said he wants a guitar just like hers.
"Because I want to play with it," he said.
When he was just a year old, Jordan had open-heart surgery and then was diagnosed with Williams Syndrome, a rare genetic disorder.
A few weeks ago, the Pawtucket family learned their boy also has a rare form of leukemia.
"Worst news you can ever have as a parent," Johnathon Nickerson said.
"They told us about four or five kids a year in the country get diagnosed with his particular leukemia," said Jillian Nickerson, Jordan's mother.
It's why they are at Boston Children's Hospital.
"Just trying to be as strong as we can for our little man," Johnathon Nickerson said.
Now on the bad days they can find comfort in a wonderful day, when a superstar brightened their son's day.
Jillian Nickerson said it's a day Jordan will never forget.
"I don't think it's possible," she said.