Rihanna and Jay-Z will join U2's Bono and The Edge tonight at the "Hope for Haiti Now: A Global Benefit for Earthquake Relief" telethon to debut the new single "Stranded (Haiti Mon Amour)," which the U2 duo wrote earlier in the week. The song will be released at various Internet retailers tomorrow morning, along with all 18 performances from tonight's telethon. As we learned from "Oprah" earlier this week, Rihanna is also planning on singing Bob Marley's "Redemption Song." Alicia Keys is expected to open the show, which starts at 8 p.m. and airs on every network and dozens of cable channels.

RELATED: We'll be Tweeting and blogging along with the event, so check back here or follow us @ndmusic.

UPDATE: The list of stars manning the phones tonight has been released. Here they are in alphabetical order: Ben Affleck, Tim Allen, Jennifer Aniston, David Archuleta, Alec Baldwin, Ellen Barkin, Drew Barrymore, Jack Black, Emily Blunt, Russell Brand, Benjamin Bratt, Pierce Brosnan, Gerard Butler, Chevy Chase, Kristin Chenoweth, Sacha Baron Cohen, Common, Cat Cora, Bradley Cooper, Daniel Craig, Cindy Crawford, Penelope Cruz, Billy Crystal, John Cusack, Eric Dane, Ellen DeGeneres, Fran Drescher, Michael Clarke Duncan, Zac Efron, Jenna Elfman, Colin Farrell, Andy Garcia, Mel Gibson, Tyrese Gibson, Selena Gomez, Neil Patrick Harris, Taraji P. Henson, Dijmon Honsou, Vanessa Hudgens, Randy Jackson, Jimmy Jean-Louis, Dwayne Johnson, Nick Jonas, Kevin Jonas, Joe Jonas, Quincy Jones, Diane Keaton, Michael Keaton, Anna Kendrick, Greg Kinnear, Jane Krakowski, John Krasinksi, Jessica Lange, Taylor Lautner, Daniel Day Lewis, Jared Leto, Justin Long, Rose McGowan, Ewan McGregor, Toby Maguire, Ricky Martin, Katharine McPhee, Debra Messing, Alyssa Milano, Jack Nicholson, Keke Palmer, Holly Robinson Peete, Tyler Perry, Chris Pine, Jeremy Piven, Jeremy Renner, Tim Robbins, Ray Romano, Jeri Ryan, Meg Ryan, Zoe Saldana, Adam Sandler, Nicole Scherzinger, Gabourey Sidibe, Kimora Lee Simmons, Russell Simmons, Christian Slater, Steven Spielberg, Molly Sims, Ringo Starr, Charlize Theron, Ashley Tisdale, Marisa Tomei, Amber Valleta, Sofia Vergara, Mark Wahlberg, Joe Walsh, Sigourney Weaver, Forest Whitaker, Olivia Wilde, Rainn Wilson, Robin Williams, Reese Witherspoon, and Noah Wyle.

And you can start donating now, if you are so inclined:

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Online: www.hopeforhaitinow.org
Phone: 877-99-HAITI
Text: Text "GIVE" to 50555
Mail: Hope For Haiti Now Fund / Entertainment Industry Foundation / 1201 W. 5th St., Suite T-700, Los Angeles, CA 90017

PHOTO: Rihanna in Norway by Associated Press.