MTV.com News — Other newly announced participants include Denzel Washington, Halle Berry, Leonardo DiCaprio, Nicole Kidman.By Jocelyn Vena Robert Pattinson Photo: James Devaney/ Getty Images Along with newly announced musical performances from Madonna an... more info

Live Daily — A slew of big name stars--including Jay-Z [ tickets ], Bruce Springsteen [ tickets ], members of U2, Justin Timberlake and Taylor Swift--have signed on for next week's "Hope for Haiti Now: A Global Benefit for Earthquake Relief." Other artists who... more info

MTV.com News — Singer will appear with Wyclef Jean on 'The Oprah Winfrey Show' Wednesday.By Jocelyn Vena Rihanna Photo: Shareif Ziyadat/ FilmMagic Rihanna will join Wyclef Jean for a special episode of "The Oprah Winfrey Show" on Wednesday (January 20), ... more info

MTV.com News — She will join husband Jay-Z, Rihanna and U2's Bono and The Edge in London for the event, airing Friday at 8 p.m. ET/PT.By Jayson Rodriguez Beyoncé Photo: Bryan Bedder/ Getty Images Beyoncé has been added to the bill for the "Hope for Hai... more info

ET Online — The biggest names in music around the world -- including Bruce Springsteen, Jennifer Hudson, Sting, Coldplay and Wyclef Jean -- will unite for "Hope for Haiti Now: A Global Benefit for Earthquake Relief," the global telethon being co-organized b... more info

MTV.com News — Bruce Springsteen, Coldplay, Alicia Keys and Christina Aguilera will also perform at the show, airing live Friday at 8 p.m. ET.By Gil Kaufman Jay-Z Photo: Dave M. Benett/ Getty Images Justin Timberlake, Coldplay, Alicia Keys, Bruce Springs... more info

Topix — Sheryl Crow has spoken out against the war in Iraq and in support of embryonic stem-cell research and efforts to combat global warming. more info

Undercover, Australia — Sheryl Crow is doing her part to protect wild horses, and we do not mean the Susan Boyle cover. more info

411 Mania — Why the long face, Sheryl? more info

Sheryl Crow has spoken out against the war in Iraq and in support of embryonic stem-cell research and efforts to combat global warming. Now, she's trying to ride to the rescue of thousands of wild horses that roam the West. more info