Possibly one of the most heartbreaking things we've seen, a new video is being shared across the Internet of California dad Chris Picco singing the Beatles' "Blackbird" to his dying infant son.

In the video, Picco is seen beside his son Lennon's incubator, strumming his guitar and serenading the tiny boy.

Lennon's mother, Picco's wife Ashley, passed away suddenly at the age of 30 on Nov. 8, a short time before the video was shot. A post on Picco's Facebook page said that a coroner's report determining Ashley's cause of death is still pending.

According to a memorial page set up by Ashley's family, the pair married in 2007 after meeting in New York City volunteering at Ground Zero in the months after the attacks on Sept. 11, 2001.

They had been eagerly anticipating the birth of their first child, a son named Lennon -- who was due Feb. 22, 2015 -- when Ashley unexpectedly died.

After being delivered via an emergency C-section, baby Lennon clung to life for 4 days before dying in his father's arms.

Picco wrote to update his followers/supporters on his Facebook page after baby Lennon died, saying, "It is with an unbelievably heavy heart that I write this. My little fighter, Lennon James Picco went to sleep in his daddy's arms late last night.

"He was surrounded by family, friends, and the best doctors, nurses and hospital staff in the world. He was dressed in an outfit that Ashley bought for him, with little guitars on it, and wrapped in a blanket made by a dear friend."

Picco's memorial page provides information about a memorial service being held in Loma Linda this Saturday for Ashley and baby Lennon, as well as detailing how people can donate to the Ashley Picco Memorial Fund.