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Kudos to Jakey G. for using his celebrity power for a good cause!

Fox is now joining ABC, CBS and NBC in donating a commercial-free hour of prime time for the September telethon "Stand Up to Cancer," which will be hosted by Katie Couric, Diane Sawyer and Brian Williams.

Jake Gyllenhaal will appear in a public service announcement during Major League Baseball's All-Star Game this evening on Fox.

The original fundraiser raised more than $100 million for research into the disease.

Make sure to donate!