The 19-year-old The Wanted singer reached out to Carlee, whose sister Victoria Soto was a teacher at Sandy Hook Elementary School, after hearing that she was a big fan of the group.
“Sending all my love to @ICarlee23 for your birthday! You, Vicki and your family are such an inspiration. Hope you have a lovely day,” Nathan wrote.
“Next time we are in NYC I have arranged for you to come and hang out with us if you are up for that? Would be lovely to see ya xx.”