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Rebecca Howard and Kevin Anderson performing on "CMT's 100 Greatest Duets" taping at Gaylord Entertainment Center on June 7, 2005 in Nashville, Tn (A...

LeeAnn Womack and Joe Nichols performing on "CMT's 100 Greatest Duets" taping at Gaylord Entertainment Center on June 7, 2005 in Nashville, Tn (AP Ph...

Dolly Parton performing on "CMT's 100 Greatest Duets" taping at Gaylord Entertainment Center on June 7, 2005 in Nashville, Tn (AP Photo/Curtis Hilbun...

Dolly Parton and Kenny Rogers performing on "CMT's 100 Greatest Duets" taping at Gaylord Entertainment Center on June 7, 2005 in Nashville, Tn (AP Ph...

Crystal Gayle and Raul Malo performing on "CMT's 100 Greatest Duets" taping at Gaylord Entertainment Center on June 7, 2005 in Nashville, Tn (AP Phot...

Terri Clark and Trace Adkins performing on "CMT's 100 Greatest Duets" taping at Gaylord Entertainment Center on June 7, 2005 in Nashville, Tn (AP Pho...

Miranda Lambert performing on "CMT's 100 Greatest Duets" taping at Gaylord Entertainment Center on June 7, 2005 in Nashville, Tn (AP Photo/Curtis Hil...

LeeAnn Womack and Kenny Rogers performing on "CMT's 100 Greatest Duets" taping at Gaylord Entertainment Center on June 7, 2005 in Nashville, Tn (AP P...

Montgomery Gentry and Shooter Jennings performing on "CMT's 100 Greatest Duets" taping at Gaylord Entertainment Center on June 7, 2005 in Nashville, T...

Travis Tritt and Patty Loveless performing on "CMT's 100 Greatest Duets" taping at Gaylord Entertainment Center on June 7, 2005 in Nashville, Tn (AP...

Miranda Lambert and Blake Shelton performing on "CMT's 100 Greatest Duets" taping at Gaylord Entertainment Center on June 7, 2005 in Nashville, Tn (A...

Clint Black performing on "CMT's 100 Greatest Duets" taping at Gaylord Entertainment Center on June 7, 2005 in Nashville, Tn (AP Photo/Curtis Hilbun)

Daniel Logan arrives at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hollywood, Ca (AP Photo/L...

Mackenzie Phillips arrives at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hollywood, Ca (AP P...

Actress CCH Pounder, left, and Benito Martinez arrive at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9,...

Billy Dee Williams arrives at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hollywood, Ca (AP P...

Nancy O'Dell arrives at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hollywood, Ca (AP Photo/L...

Steven Spielberg arrives at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hollywood, Ca (AP Pho...

CCH Pounder arrives at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hollywood, Ca (AP Photo/Lu...

Laura Allen arrives at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hollywood, Ca (AP Photo/Lu...

Annette Benning and Warren Beatty arrive at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Holly...

Richard Dreyfus arrives at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hollywood, Ca (AP Phot...

Robert Duvall and Luciana arrive at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hollywood, Ca...

Benito Martinez arrives at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hollywood, Ca (AP Phot...

William Shatner and Elizabeth arrive at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hollywood...

Molly Sims arrives at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hollywood, Ca (AP Photo/Lui...

Adam Carolla and Lynette Paradise arrive at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Holly...

Harrison Ford and Calista Flockhart arrive at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hol...

Mark Hamill and Family arrive at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hollywood, Ca (A...

Cloris Leachman arrives at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hollywood, Ca (AP Phot...

Rick and Kevin Dees arrive at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9, 2005 in Hollywood, Ca (AP P...

George Lucas with Amanda, Katie and Jett Lucas arrive at the 33rd AFI Life Achievement Award Tribute to George Lucas held at Kodak Theatre on June 9,...

This undated photo released by the Inamori Foundation shows U.S. ecologist Dr. Simon A. Levin, a professor at Princeton University in New Jersey. Levi...

** FILE ** German team, Michael Ballack, Robert Huth, Frank Fahrenhorst, Kevin Kuranyi, Bernd Schneider and Andreas Hinkel, back row form left, Gerald...

Katherine Heigl attends the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" presented by The...

Kate Walsh attends the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" presented by The Muse...

Ellen Pomeo attends the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" presented by The Mus...

T.R. Knight and Ellen Pomeo attend the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" prese...

Sandra Oh attends the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" presented by The Museu...

T.R. Knight and Ellen Pomeo attend the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" prese...

Chandra Wilson attends the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" presented by The...

Chandra Wilson attends the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" presented by The...

Katherine Heigl attends the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" presented by The...

Sandra Oh and Isaiah Washington attend the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" p...

Producer Shondra Rhimes attends the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" presente...

T.R. Horton attends the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" presented by The Mus...

Ellen Pomeo attends the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" presented by The Mus...

Kate Walsh and Ellen Pomeo attend the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" presen...

Katherine Heigl attends the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" presented by The...

Kate Walsh and Katherine Heigl attend the 23rd Annual William S. Paley Television Festival screening and Q&A with the cast of "Grey's Anatomy" pr...