George Clooney, Beyoncé, Oprah Winfrey and Julia Roberts are some of the A-list celebs who'll take part in Hand in Hand: A Benefit for Hurricane Harvey.
A press release says the event will "bring the country together to raise funds, spirits and help rebuild Texas in the wake of this unprecedented devastation." Proceeds will benefit several national and local charities.
Other celebrities who have signed on to help include Reese Witherspoon, Jamie Foxx, Rob Lowe, Matthew McConaughey, Dennis Quaid, Adam Sandler, Blake Shelton and Barbra Streisand.
The telethon airs live on September 12th at 8pm EST. on CBS, ABC, NBC, FOX and CMT.
For more information, visit HandInHand2017.com