Naya Rivera’s heartbreaking duet with son shared by ‘Glee’ co-star Amber Riley

The world is still mourning the death of Naya Rivera.

Glee costar Amber Riley recently shared an Instagram video featuring Naya performing a sweet duet with her 4-year-old son.

“My favorite duet partner. I love you. I miss you,” wrote Amber. “I don’t have words right now, just lots of feelings. Rest In Peace Angel, and know that your family will never have to worry about anything.”

In the touching clip, Naya and her son are singing an a cappella version of the popular preschool song “Skidamarink” while snuggling in bed.

Our hearts are so heavy.