Additional Talent Added To The Roster Include LeBron James, Ben Affleck, Sir Ben Kingsley, Kiefer Sutherland And Cast Of "The Hangover"

Premieres Sunday, June 20th at 10 PM, ET/PT

Academy Award-winner George Clooney will join the all-star line-up at Spike TV's "Guys Choice." Additional talent added to the star-studded roster include; LeBron James, Ben Affleck, Sir Ben Kingsley, Kiefer Sutherland and cast of the top box-office grossing comedy of 2009, "The Hangover."

These Hollywood heavyweights join previously announced super-star participants including: Robert De Niro, Robert Downey Jr., Chris Rock, James Gandolfini, Scarlett Johansson, Charlize Theron, Sylvester Stallone, Samuel L. Jackson, Ray Liotta, Ozzy Osbourne, Liam Neeson, Adrien Brody, Jessica Biel, Shaun White, Dwayne Johnson and many more.

The fourth annual exclusive event that celebrates everything that Man-matters will take place on Saturday, June 5 in Los Angeles and air Sunday June 20th at 10:00 pm EDT/PDT.

Spike also announced today that "Guys Choice" will be a kick-off event to raise awareness for the network's year-round pro-social initiative, "Spike Salutes," honoring America's men and women in uniform. Spike, as a brand targeting men, is uniquely positioned to be a voice to help raise awareness, garner support, and raise funds in support of our brave servicemen and women. "Spike Salutes" will connect viewers with ways to support our heroes in the armed services.

The official sponsors of Spike TV's "Guys Choice" are AT&T, AutoTrader.com, AXE Hair, Captain Morgan, Corona, and Pizza Hut.

Casey Patterson, Carol Donovan, and Beth McCarthy-Miller will serve as Executive Producers.

Spike TV is available in 98.6 million homes and is a division of MTV Networks. A unit of Viacom (NYSE: VIA, VIA.B), MTV Networks is one of the world's leading creators of programming and content across all media platforms. Spike TV's Internet address is www.spike.com and for up-to-the-minute and archival press information and photographs, visit Spike TV's press site at http://www.spike.com/press