Steve Granitz/WireImageThe stars have aligned! Hollywood's biggest names have descended on Nokia Theater in Los Angeles for the 2014 Stand Up to Cancer telethon.
And these A-listers have something in common on tonight's red carpet—they rocking Stand Up to Cancer tees! Katie Couric was cool in her black top and Reese Witherspoon was chic in her tee and skirt combo.
SU2C will air at 8 pm tonight on all major networks, including E! The telecast will also stream live on Hulu and Yahoo!
The traditional phone bank is being replaced by a digital lounge hosted by Katie Couric—celebs like Halle Berry, Jon Hamm, Joe Manganiello and more reach out to viewers via phone and social media through the fundraiser's "We're Calling You" campaign.
Click through to see all the celebrities on the Stand Up to Cancer red carpet and be sure to tune in to the telecast.