LOS ANGELES -- Pop superstar Celine Dion will perform during the televised "Stand Up To Cancer" benefit show.
A number of Canadian channels including CBC, City, CTV and Global will air the one-hour special on Sept. 9, which will also feature performances by Keith Urban and Little Big Town and appearances by celebrities including Ben Affleck, Matthew McConaughey, Emma Stone and Anna Kendrick.
Dion's husband and manager Rene Angelil died in January after a long battle with cancer.
The superstar singer put her career on hold several times to help care for Angelil.
"Stand Up To Cancer" is being executive-produced by movie star Bradley Cooper, who lost his father to lung cancer in 2011.
The charity behind the live fundraising broadcast has raised more than US$370 million since launching in 2008.