Donald Trump

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Donald Trump on the field prior to a game between the New York Yankees and the Tampa Bay Rays on September 23, 2010 at Yankee Stadium in the Bronx borough of New York City.

Andy Richter

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Actor Andy Richter during the MLB All-Star Game Celebrity Softball Game at Angels Stadium of Anaheim on July 11, 2010 in Anaheim, California.

Tracy Morgan

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Tracy Morgan throws out the opening pitch before a game between the New York Yankees and the Baltimore Orioles at Camden Yards on April 28, 2010 in Baltimore, Maryland.

Mario Lopez

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TV personality Mario Lopez during the MLB All-Star Game Celebrity Softball Game at Angels Stadium of Anaheim on July 11, 2010 in Anaheim, California.

Bret Michaels

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Rocker Bret Michaels throws a few balls prior to the start of a game between the Tampa Bay Rays and the Seattle Mariners at Tropicana Field on September 25, 2010 in St. Petersburg, Florida.

Maria Menounos

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TV personality Maria Menounos at bat during the MLB All-Star Game Celebrity Softball Game at Angels Stadium of Anaheim on July 11, 2010 in Anaheim, California.

Jay-Z

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Rapper Jay-Z watches a game between the New York Yankees and the Kansas City Royals on July 23, 2010 at Yankee Stadium in the Bronx borough of New York City.

Kevin James

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Television and movie actor Kevin James throws out the first pitch before the game between the New York Mets and the Detroit Tigers on June 22, 2010 at Citi Field in the Flushing neighborhood of the Queens borough of New York City.

Jon Hamm

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Actor Jon Hamm during the MLB All-Star Game Celebrity Softball Game at Angels Stadium of Anaheim on July 11, 2010 in Anaheim, California.

Guy Fieri

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TV personality Guy Fieri during the MLB All-Star Game Celebrity Softball Game at Angels Stadium of Anaheim on July 11, 2010 in Anaheim, California.

Lady Gaga

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Singer Lady Gaga watches the game between the San Diego Padres and the New York Mets at Citi Field on June 10, 2010 in the Flushing neighborhood of the Queens borough of New York City.

Dr. Dre

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Producer and musician Dr. Dre is on the field before the Boston Red Sox take on the the New York Yankees on April 4, 2010 during opening night at Fenway Park in Boston, Massachusetts.

Demi Moore and Ashton Kutcher

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watch a New York Yankees game against the Los Angeles Angels of Anaheim on April 15, 2010 at Yankee Stadium in the Bronx borough of New York City.

Chris Rock

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Comedian Chris Rock attends a game between the New York Yankees and the Detroit Tigers on August 19, 2010 at Yankee Stadium in the Bronx borough of New York City.

John Cena

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Actor John Cena takes in a game between the Tampa Bay Rays and the Detroit Tigers at Tropicana Field on July 27, 2010 in St. Petersburg, Florida.

Scott Stapp

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Lead singer of Creed Scott Stapp sings the National Anthem before the Los Angeles Dodgers take on the Florida Marlins during the Marlins home opening game at Sun Life Stadium on April 9, 2010 in Miami, Florida.

Pete Wentz

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Musician Pete Wentz throws out a ceremonial first pitch before a game between the Arizona Diamondbacks and Los Angeles Dodgers at Dodger Stadium September 2, 2009 in Los Angeles, California.

Mark Wahlberg

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Mark Wahlberg attends the Boston Red Sox versus the Seattle Mariners game on July 5, 2009 at Fenway Park in Boston, Massachusetts.

Vince Vaughn

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Vince Vaughn attends a Los Angeles Dodgers game at Dodger Stadium August 23, 2009 in Los Angeles, California.

Wilmer Valderrama

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Actor Wilmer Valderrama throws the ceremonial first pitch before a game between the Los Angeles Dodgers and the San Francisco Giants at Dodger Stadium on September 18, 2009 in Los Angeles, California.

Billy Bob Thornton

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Actor Billy Bob Thornton runs onto the field during the Taco Bell All-Star Legends & Celebrity Softball Game at Busch Stadium on July 12, 2009 in St. Louis, Missouri.

Shawn Johnson

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Olympian Shawn Johnson fields the ball during the Taco Bell All-Star Legends & Celebrity Softball Game at Busch Stadium on July 12, 2009 in St. Louis, Missouri.

Nelly

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Rapper Nelly runs the bases during the Taco Bell All-Star Legends & Celebrity Softball Game at Busch Stadium on July 12, 2009 in St. Louis, Missouri.

New York Mets v Chicago Cubs

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Actor/comdeian Jon Lovitz waves to the crowd before throwing a ceremonial first pitch before a game between the Chicago Cubs and the New York Mets on August 30, 2009 at Wrigley Field in Chicago, Illinois.

Kid Rock

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Musician Kid Rock attends the Boston Red Sox versus the Oakland Athletics at Fenway Park on July 28, 2009 in Boston, Massachusetts.

Jenna Fischer

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Actress Jenna Fischer takes part in the Taco Bell All-Star Legends & Celebrity Softball Game at Busch Stadium on July 12, 2009 in St. Louis, Missouri.

Kate Hudson

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Actress Kate Hudson watches the New York Yankees play the Los Angeles Angels of Anaheim in a game at Yankee Stadium on September 14, 2009 in the Bronx borough of New York City.

James Denton

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Actor James Denton looks on during the Taco Bell All-Star Legends & Celebrity Softball Game at Busch Stadium on July 12, 2009 in St. Louis, Missouri.

Diana DeGarmo

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Singer Diana DeGarmo sits in the stands prior to singing the National Anthem before a game between the Atlanta Braves and the Pittsburgh Pirates on March 31, 2008 at Turner Field in Atlanta, Georgia.

Billy Crystal

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attends a Los Angeles Dodgers game at Dodger Stadium on August 23, 2009 in Los Angeles, California.

Rob Schneider

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Actor Rob Schneider speaks to the crowd before a San Diego Padres game against the San Francisco Giants at AT&T Park on October 3, 2010 in San Francisco, California.

Jimmy Fallon

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Boston Red Sox fan and actor Jimmy Fallon celebrates after the Red Sox defeated the St. Louis Cardinals 3-0 in Game 4 of the World Series on October 27, 2004 at Busch Stadium in St. Louis, Missouri.

Jennifer Lopez

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Jennifer Lopez attends the Boston Red Sox and New York Yankees game at Fenway Park October 11, 2003 in Boston, Massachusetts.

Jennifer Garner and Ben Affleck

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Actor Ben Affleck and his wife, actress Jennifer Garner, watch the Boston Red Sox play the New York Yankees at Fenway Park on October 1, 2005 in Boston, Massachusetts.