Supporters close to the country star, 39, launched afundraiserto donate funds to theDell Children’s Medical Centerin Texas, where his youngest child was treated on June 6. AT-shirtwas created through the singer’sYee Yee apparel lineas a tribute to the toddler.
“This shirt has a Yee Yee Excavator on it (Riv’s favorite thing to do was watch excavators scoop up dirt) and is red – Riv’s favorite color,” the description reads.
“We feel like it’s only right to give something back to the people who were so good to the Granger Smith family,” it added.
In addition, the Smiths, who are also parents to son Lincoln, 5, and daughter London, 7, provided an update on the fundraising efforts, which continue to grow. “Current Donations Raised for Dell Children’s Medical Center: $121,082,” the update stated.
Yee Yee Apparel. Inset: Courtesy Smith Family

Smith’s rep later confirmed to PEOPLE thatRiver’s tragic deathwas due to a drowning accident at home. He was laid to rest on Tuesday, PEOPLE confirms.
The Williamson County Sheriff Department in Texas declined to comment on the incident.
The country singer shared the “unthinkable” news on Twitter and Instagram Thursday that his and wife Amber’s 3-year-old son River Kelly died “following a tragic accident” where “despite doctor’s best efforts, he was unable to be revived.”
Granger Smith and family.Granger Smith/Instagram

At the time, the Smiths announced the death of their child, they requested that those willing to give could “please send donations toDell Children’s Medical Centerin River’s name. The doctors, nurses and staff have been incredible.”
source: people.com