AceShowbiz - Ben Stiller, Anne Hathaway, Minnie Driver, and Olivia Munn have added their names to the list of Hollywood big names joining in the Comic Relief Fun in America on Thursday night, May 24.
The stars have signed up to make appearances as part of the Red Nose Day Special telethon.
They'll join the celebrities helping to raise money for children living in poverty.
Meanwhile, Gilmore Girls star Lauren Graham will appear in a short film about her recent visit to Puerto Rico to meet children whose lives were forever changed by Hurricane Maria, and Connie Britton will shed light on the plight of Uganda's street children, who live in extreme poverty.
Also as part of Red Nose Day, Ne-Yo will tackle TV's American Ninja Warrior course tor raise funds, while Kelly Clarkson, Jack Black, Isla Fisher, and Sarah Silverman will be among the stars taking part in a special episode of popular TV show Hollywood Game Night.