Actor Bob McGrath — best known for his role as Bob Johnson on Sesame Street — has died, aged 90.
McGrath's family shared on Facebook that he died peacefully at home, surrounded by loved ones, on December 4.
He was a founding cast member on Sesame Street when the show premiered in 1969, in his role as a friendly neighbour.
His final appearance on the show was in 2017, marking an almost five-decade-long stint as part of the much-loved children's show.
Sesame Workshop — the non-profit organisation behind the TV show — paid tribute to McGrath on Twitter.
"Bob embodied the melodies of Sesame Street like no one else, and his performances brought joy and wonder to generations of children around the world … whether teaching them the ABCs, the people in their neighborhood, or the simple joy of feeling music in their hearts," the organisation said.
"A revered performer worldwide, Bob's rich tenor filled airwaves and concert halls from Las Vegas to Saskatchewan to Tokyo many times over.
"We will be forever grateful for his many years of passionate, creative contributions to Sesame Street and honored that he shared so much of his life with us."
McGrath grew up in Illinois and studied music at the University of Michigan and Manhattan School of Music.
He also was a singer in the 60s series Sing Along With Mitch and launched a successful singing career overseas, in Japan.
Sesame Street actor Alan Muraoka paid tribute to McGrath as his role model, mentor and friend.
"His kindness and wicked sense of humor were such a joy, and I loved him so much," he said on Facebook.
"Rest well my friend. You did good"
ABC/AP