LOS ANGELES (AP) - If you watch any TV Friday night, it's going to be hard to miss the "Stand Up To Cancer" telethon.
The telethon is on the four major broadcast networks and a host of cable channels.
The list of celebs taking part is growing, too.
Diane Lane, Marcia Cross and Mark Harmon are the latest announced by organizers. Kyra Sedgwick, Jay Leno and Ryan Seacrest also have been added to the list.
Other previously announced stars include Sally Field, Kareem Abdul-Jabbar and George Clooney.
Donations to the telecast are intended to fund innovative cancer research.
The first telethon, in 2008, helped raise more than $100 million.
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