Neil Patrick Harris' twins adorably sing 'Jingle Bells'

Watch Neil Patrick Harris' Twins Adorably Sing 'Jingle Bells'

It's possible that this is the cutest rendition of "Jingle Bells" ever recorded.

Neil Patrick Harris nearly broke the Internet with adorableness on Wednesday when he posted an Instagram video of he and husband David Burtka's twins, Harper and Gideon Burtka-Harris, singing the classic Christmas carol while trimming the family tree and donning holiday pajamas.

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Yay! David is back home, and the family all together! Time to trim us a tree! #trim #carols #JingleFeels

A video posted by Neil Patrick Harris (@instagranph) on

"Yay! David is back home, and the family all together!" the former How I Met Your Mother star wrote. "Time to trim us a tree! #trim #carols #JingleFeels."

It's clear after hearing these kids perform "Jingle Bells" so willingly that they are definitely being raised by two Broadway stars.

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The 41-year-old actor was recently deemed one of Barbara Walters' 10 Most Fascinating People, and told the journalist that he still has "no interest" in learning which twin is his biological child. "We are their parents and I love them implicitly," he said, adding that he and Burtka, 39, have their suspicions as to which twin is theirs "based on their behavior."

Further explaining how Harper and Gideon were conceived, the Tony winner continued, "We inserted one of my sperm and one of David's sperm into two eggs with the hope that they would both take, just because we both wanted to be dads biologically."

"Both took, miraculously."

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