MTV, VH1, CMT ReAct Now

MTV Networks will present multigenre special ReAct Now: Music & Relief across all of its music services Saturday.

The special will kick off at 8 p.m. (EST/PST) on MTV: Music Television, VH1, Country Music Television, MTV2, VH1 Classic, mtvU, MTV Español, MTV Hits, MTV Jams, MTV Puerto Rico and broadband-video networks MTV Overdrive and VH1 VSpot, and it will be streamed live on (

The event is aimed at raising funds for The American Red Cross, The Salvation Army and America's Second Harvest.

Among artists set to appear: U2, Coldplay, Hank Williams Jr., Jon Stewart, Pearl Jam, Red Hot Chili Peppers, Allen Toussaint, Norah Jones, Bon Jovi, Elton John, Fiona Apple, Big & Rich, Emmylou Harris, Buckwheat Zydeco, Dennis Quaid, Sugarland, George Lopez, Beck, Jewel, Chris Thomas King, The Rolling Stones, Neil Young, Kanye West, Sheryl Crow, Paul McCartney, Alan Jackson, 3 Doors Down, Kelly Clarkson, Brian Wilson, Lynyrd Skynyrd, Kid Rock, Melissa Etheridge, The Neville Brothers, Trent Reznor, Motley Crue, Simple Plan, Dashboard Confessional, Goo Goo Dolls, Staind, Good Charlotte, Audioslave, Common, John Mayer, Marc Broussard, Maroon 5, The Radiators, Green Day, Usher, Alicia Keys, John Mellencamp, Dave Matthews Band, Rob Thomas, Gretchen Wilson, David Banner and Linkin Park's Chester Bennington.