Shawn Johnson through the years

US gymnast Shawn Johnson has become something of a national treasure after bringing home one gold and three silver medals from the 2008 Beijing Olympics and earning enough public adoration to win the eighth season of Dancing with the Stars. Now 20, she is competing for her place on Team USA for the London Olympics in July.

Shawn Johnson 2007

Shawn Johnson of the USA looks on during the flower ceremony after the women's Floor final competition of the 40th World Artistic Gymnastics Championships on September 9, 2007 at the Hanns-Martin-Schleyer hall in Stuttgart, Germany.

Shawn Johnson 2007

Shawn Johnson competes in the balance beam portion of the 2007 Visa Gymnastics Championship on August 18, 2007 at the HP Pavillion in San Jose, California.

Shawn Johnson 2008

Shawn Johnson competes on the vault during day four of the 2008 U.S. Olympic Team Trials for gymnastics at the Wachovia Center on June 22, 2008 in Philadelphia, Pennsylvania.

Shawn Johnson 2008

Shawn Johnson of the United States competes in the vault during the artistic gymnastics team event at the National Indoor Stadium during Day 5 of the Beijing 2008 Olympic Games on August 13, 2008 in Beijing, China.

Shawn Johnson 2008

Shawn Johnson of the USA competes on the Women's Beam Final at the National Indoor Stadium on Day 11 of the Beijing 2008 Olympic Games on August 19, 2008 in Beijing, China.

Shawn Johnson 2008

Shawn Johnson of the USA competes on the Women's Beam Final at the National Indoor Stadium on Day 11 of the Beijing 2008 Olympic Games on August 19, 2008 in Beijing, China.

Shawn Johnson 2008

Shawn Johnson (C) of the United States poses with her parents Teri and Doug Johnson after placing second in the Women's all around Gymnastics event in the NBC Today Show Studio at the Beijing 2008 Olympic Games on August 15, 2008 in Beijing, China.

Shawn Johnson 2008

Shawn Johnson waves to the crowd after competing on the balance beam during day two of the 2008 U.S. Olympic Team Trials for gymnastics at the Wachovia Center on June 20, 2008 in Philadelphia, Pennsyvania.

Shawn Johnson 2008

Shawn Johnson of the Untied States competes in the Women's Beam Final at the National Indoor Stadium on Day 11 of the Beijing 2008 Olympic Games on August 19, 2008 in Beijing, China.

Shawn Johnson 2008

Shawn Johnson of the USA practices on the uneven bars ahead of the Beijing 2008 Olympic Games at the National Indoor Stadium on August 7, 2008 in Beijing, China.

Shawn Johnson 2008

Gold medalist Shawn Johnson of the United States stands on the podium during the medal ceremony for the Women's Beam Final at the National Indoor Stadium on Day 11 of the Beijing 2008 Olympic Games on August 19, 2008 in Beijing, China.

Shawn Johnson 2008

(L-R) Shawn Johnson, Nastia Liukin, Chellsie Memmel, Samantha Peszek, Alicia Sacramone and Bridget Sloan of the United States women's gymnastics team celebrates after receiving the silver medal in the artistic gymnastics team event at the National Indoor Stadium during Day 5 of the Beijing 2008 Olympic Games on August 13, 2008 in Beijing, China.

Shawn Johnson 2008

Gold medalist Shawn Johnson of the United States salutes the flag on the podium during the medal ceremony for the Women's Beam Final at the National Indoor Stadium on Day 11 of the Beijing 2008 Olympic Games on August 19, 2008 in Beijing, China.

Shawn Johnson 2008

Gold medalist Shawn Johnson of the USA poses on the podium during the medal ceremony for the Women's Beam Final at the National Indoor Stadium on Day 11 of the Beijing 2008 Olympic Games on August 19, 2008 in Beijing, China.

Shawn Johnson 2008

(L-R) Silver medalist Nastia Liukin of the USA, gold medalist Shawn Johnson of the USA and bronze medalist Cheng Fei of China pose on the podium during the medal ceremony for the Women's Beam Final at the National Indoor Stadium on Day 11 of the Beijing 2008 Olympic Games on August 19, 2008 in Beijing, China.

Shawn Johnson 2008

(L-R) Gymnasts Nastia Liukin and Shawn Johnson attend the 29th annual Salute to Women in Sports Awards presented by the Women's Sports Foundation at The Waldorf-Astoria Hotel on October 14, 2008 in New York City.

Shawn Johnson 2009

Shawn Johnson arrives at the Los Angeles premiere of "Hannah Montana The Movie" at the El Capitan Theatre on April 2, 2009 in Hollywood, California.

Shawn Johnson 2009

April 30, 2009 Hollywood, Ca. Shawn Johnson "Star Trek" Los Angeles Premiere Held at Grauman's Chinese Theatre

'Dancing With the Stars': Gallery of Champions

Mark Ballas and Shawn Johnson perform during the semi-finals of "Dancing with the Stars," May, 11, 2009, in Los Angeles.

Shawn Johnson 2009

Shawn Johnson makes a surprise visit and offers coaching tips to aspiring gymnasts at the Golden State Gym in Burbank, CA on May 13, 2009. Shawn was kicking off The Lunchables Lunch Your Tummy Right Tour, a cross-country tour aiming to inspire kids to achieve success.

Shawn Johnson 2009

TV personality/gymnast Shawn Johnson arrives at the Los Angeles Premiere "Terminator Salvation" at Grauman's Chinese Theatre on May 14, 2009 in Hollywood, California.

Shawn Johnson 2009

Dancers Mark Ballas and Shawn Johnson arrive at the 2009 MTV Movie Awards held at the Gibson Amphitheatre on May 31, 2009 in Universal City, California.

Shawn Johnson 2009

Olympic gymnast Shawn Johnson Practices Pitching before throwing the ceremonial first pitch at Dodgers game at Dodger Stadium on June 1, 2009 in Los Angeles, California.

Shawn Johnson 2009

Gymnast Shawn Johnson attends Hollywood Life's 11th annual Young Hollywood Awards at The Eli and Edythe Broad Stage on June 7, 2009 in Santa Monica, California.

Shawn Johnson 2009

Olympic gymnast Shawn Johnson and dancing partner Mark Ballas attend the 2009 CMT Music Awards at the Sommet Center on June 16, 2009 in Nashville, Tennessee.

Shawn Johnson 2009

Shawn Johnson arrives for the 2009 ESPY Awards at the Nokia Theatre/LA LIVE in Los Angeles, California on July 15, 2009.

Shawn Johnson 2009

Gymnast and U.S. Olympic gold-medalist, Shawn Johnson arrives at the premiere Of DreamWorks "Transformers: Revenge Of The Fallen" at Mann Village Theatre on June 22, 2009 in Westwood, Los Angeles, California.

Shawn Johnson 2009

(L-R) Olympic Gold Medalist Shawn Johnson and dancer Mark Ballas arrive at the 2009 Teen Choice Awards held at Gibson Amphitheatre on August 9, 2009 in Universal City, California.

Shawn Johnson 2009

U.S. Olympic Gymnast Shawn Johnson attends the "Women Who Make A Difference" Awards at Hearst Tower on September 9, 2009 in New York City.

Shawn Johnson 2009

World champion gymnast Shawn Johnson attends the Lunchables Lunch Note Promise Campaign at the 92nd Street Y on September 10, 2009 in New York City.

Shawn Johnson 2009

Gymnast Shawn Johnson attends the 30th Annual Salute To Women In Sports Awards at The Waldorf=Astoria on October 13, 2009 in New York City.

Shawn Johnson 2010

Gymnast Shawn Johnson arrives at the premiere of Summit Entertainment's "The Twilight Saga: Eclipse" during the 2010 Los Angeles Film Festival at Nokia Theatre L.A. Live on June 24, 2010 in Los Angeles, California.

Shawn Johnson 2010

Gold Medalist gymnast Shawn Johnson launches the Refuel America Program and unveils the newest Milk Mustache ads at the 92nd Street Y on August 11, 2010 in New York City. Gold medalists Chris Bosh, Apolo Anton Ohno and Shawn Johnson teamed up today to announce a new campaign highlighting the importance of refueling with lowfat chocolate milk during the two-hour recovery window after exercise.

Shawn Johnson 2011

Shawn Johnson stretches before the Senior Women's competition on day four of the Visa Gymnastics Championships at Xcel Energy Center on August 20, 2011 in St Paul, Minnesota.

Shawn Johnson 2011

Shawn Johnson competes on the balance beam during the Senior Women's competition on day four of the Visa Gymnastics Championships at Xcel Energy Center on August 20, 2011 in St Paul, Minnesota.

XVI Pan American Games - Day 13

GUADALAJARA, MEXICO - OCTOBER 27: (L-R) Silver medal winner Shawn Johnson of the United States, gold medal winner Bridgette Carquatto of the United States and bronze medal winners Marisela Cantu and Elsa Garcia of Mexico pose after the Women's Artistic Gymnastics Finals in Uneven Bars during Day 13 of the XVI Pan American Games at the Revolution Sports Complex on October 27, 2011 in Guadalajara, Mexico. (Photo by Dennis Grombkowski/Getty Images)

XVI Pan American Games - Day 10

GUADALAJARA, MEXICO - OCTOBER 24: Shawn Johnson of the USA in action during the Women's Artistic Gymnastics at the Nissan Gymnastics Complex during Day Ten of the XVI Pan American Games on October 24, 2011 in Guadalajara, Mexico. (Photo by Scott Heavey/Getty Images)

XVI Pan American Games - Day 13

GUADALAJARA, MEXICO - OCTOBER 27: Shawn Johnson of the United States celebrates after the Women's Artistic Gymnastics Finals in Uneven Bars during Day 13 of the XVI Pan American Games at the Revolution Sports Complex on October 27, 2011 in Guadalajara, Mexico. (Photo by Dennis Grombkowski/Getty Images)

XVI Pan American Games - Day 13

GUADALAJARA, MEXICO - OCTOBER 27: Shawn Johnson of the United States competes in the Women's Artistic Gymnastics Finals in Uneven Bars during Day 13 of the XVI Pan American Games at the Revolution Sports Complex on October 27, 2011 in Guadalajara, Mexico. (Photo by Dennis Grombkowski/Getty Images)