Beyonc, Oprah, Streisand and Blake Shelton to headline Hurricane Harvey telethon

Beyonc, Blake Shelton, Barbra Streisand and Oprah Winfrey will headline a one-hour benefit telethon to benefit Hurricane Harvey victims next Tuesday.

The star-studded telethonis being organized by Houston rap artist Bun B and Scooter Braun, founder of SB Projects, and is expected to include live or taped messages fromGeorge Clooney, Matthew McConaughey, Dennis Quaid, Julia Roberts, Jamie Foxx, Ryan Seacrest, Michael Strahan, Kelly Rowland, George Strait, Reese Witherspoon and others.

Journalists Matt Lauer and Norah O'Donnell will also participate in the event, which will be broadcast liveat8 p.m. ETon Sept. 12, and on tape delay at 8 p.m. PT on the West Coast. It will air on multiple networks, includingABC, CBS, NBC, Fox and CMT, and will streamed live on Facebook, YouTube and Twitter.

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The telethon will benefit several organizations, including United Way of Greater Houston, Habitat for Humanity, Save the Children, Direct Relief, Feeding Texas and The Mayor's Fund for Hurricane Harvey Relief.

Other entertainment figures have already stepped up to help flood victims. ABC and its sister networks held a "day of giving" last week, and singers Paul Simon and Edie Brickell pledged $1 million US.

The telethon will air from Los Angeles, but there will be stages in New York and Nashville, Tennessee.

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