Watch 'Stand Up 2 Cancer' Live on Yahoo! TV

"Stand Up 2 Cancer," the star-studded event to help battle and raise awareness of the disease, will be webcast live by Yahoo! TV tonight (Friday, September 7).

The telethon will include performances by Taylor Swift, Alicia Keys, Coldplay, and Tim McGraw, and feature appearances by Gwyneth Paltrow, Matt Damon, Jessica Biel, Julia Roberts, Jeremy Renner, Minka Kelly, Joe Manganiello, and many more to raise funds for innovative research to develop new treatments quickly in order to save lives.

This nationally televised fundraising event will air commercial–free at 8 PM on all the major networks (ABC, FOX, NBC and CBS) as well as cable networks (BIO, E!, ENCORE, HBO, HBO Latino, ION Television, Lifetime Movie Network, Logo, MLB Network, mun2, Palladia, SHOWTIME, Smithsonian Channel, STARZ, STYLE, TBS and VH1), and, of course, on Yahoo! TV.

Check out the webcast below at 5:58 PM EDT/2:58 PM PDT to watch the two hour pre-show, immediately followed by the telethon.

You can join the fight against cancer and donate at Stand Up 2 Cancer's official site.