Country music singer Granger Smith's little boy drowned in an accident in the family's backyard pool, he revealed Thursday.
River, 3, was well-known to his dad's fans. He appeared in his music videos and on the family's popular YouTube channel.
The singer broke the heartbreaking news on Instagram, saying, "I have to deliver unthinkable news. He wrote we've lost our youngest son, River. Our family is devastated and heartbroken."
The Smith's have decided to donate the little boy's organs to children in need.
"Amber and I made the decision to say our last goodbyes and donate his organs so that other children will be given a second chance at life," the singer wrote.
The family asked that donations be made to Dell Children's Medical Center of Central Texas.
River's death comes almost a year after Olympic skier Bode Miller's little girl, Emmy, drowned in a neighbor's pool.
The Millers are reaching out to the Smiths, offering love and support.
"My heart breaks," Bode's wife, Morgan, wrote on Instagram. "Another baby gone too soon."
The Millers have become vocal advocates for pool safety after Emmy's death, urging everyone to fence in their pools, stay vigilant at all times and teach children how to swim early.
On average, 363 children younger than 15 drown in pools or spas every year, according to the U.S. Consumer Product Safety Commission.