May 10, 2015, 12:01 a.m. (ET)

One of Team USA's most beloved swimmers - five-time Olympic medalist Missy Franklin - turns 20 on May 10, 2015. If we've learned one thing about this swimming sensation (aside from her impressive ability to dominate in the pool), it's that she is bubbly, smiley and can light up any room she enters. To celebrate Franklin's 20th birthday, we're taking a look at 20 photos where she lit up our lives.

1) 2014 Phillips 66 National Championships
Missy Franklin reacts after her win in the women's 100-meter backstroke during the 2014 Phillips 66 National Championships at the Woollett Aquatic Center on Aug. 9, 2014 in Irvine, Calif.

2) 2014 Phillips 66 National Championships

Missy Franklin speaks during the 2014 Phillips 66 USA Swimming National Championships press conference at the William Woollett Jr. Aquatics Complex on Aug. 5, 2014 in Irvine, Calif.

3) 2014 Arena Grand Prix
Missy Franklin smiles after the women's 200-meter freestyle preliminaries during the 2014 Arena Grand Prix of Santa Clara at the George F. Haines International Swim Center on June 21, 2014 in Santa Clara, Calif.

4) Bayview Elementary School
Winner of the Laureus World Sports Award for a female athlete, Missy Franklin is surrounded by students seeking her autograph during her visit to Bayview Elementary School on June 3, 2014 in San Pablo, Calif.

5) 2014 Laureus World Sports Awards

Laureus World Sportswoman of the Year winner Missy Franklin poses with her trophy during the Winners Photocall for the 2014 Laureus World Sports Awards at the Istana Budaya Theatre on March 26, 2014 in Kuala Lumpur, Malaysia.

6) 2013 AT&T Winter National Championships

Missy Franklin stands on the podium with her gold medal after winning the women's 200-meter freestyle finals during the 2013 AT&T Swimming Winter National Championships on Dec. 6, 2013 in Knoxville, Tenn.

7) Salute to Women In Sports

Olympic gold medalist Missy Franklin receives the Individual Sports Woman of the Year Award onstage during the 34th annual Salute to Women In Sports Awards at Cipriani on Wall Street on Oct. 16, 2013 in New York City.

8) 2013 FINA World Championships
Missy Franklin celebrates after the women's 200-meter freestyle final at the 15th FINA World Championships at Palau Sant Jordi on July 31, 2013 in Barcelona, Spain.

9) 2013 FINA World Championships
Missy Franklin in action during a training session at the 15th FINA World Championships at Palau Sant Jordi on July 27, 2013 in Barcelona, Spain.

10) 2013 FINA World Championships

Missy Franklin attends a press conference for the FINA World Championships at Palau Sant Jordi on July 26, 2013 in Barcelona, Spain.

11) Sanctuary Golf Course

Olympic gold medalist Missy Franklin reacts as the British Ambassador to the U.S. Sir Peter Westmacott and Britain's Prince Harry sing happy birthday to her at a reception at the Sanctuary Golf Course on May 10, 2013 in Sedalia, Colo.

12) Golden Globe Awards After Party

Olympic swimmer Missy Franklin attends The Weinstein Company's 2013 Golden Globe Awards After Party at The Beverly Hilton hotel on Jan. 13, 2013 in Beverly Hills, Calif.

13) 2012 AT&T Winter National Championships
Missy Franklin during the awards ceremony for the women's 200-meter backstroke during the 2012 AT&T Winter National Championships on Dec. 1, 2012 at the Lee and Joe Jamail Texas Swimming Center in Austin, Texas.

14) Colorado Rockies

Olympic swimmer Missy Franklin celebrates after throwing out the first pitch before a game between the Arizona Diamondbacks and Colorado Rockies at Coors Field on Sep. 22, 2012 in Denver.

15) Stand Up To Cancer

Missy Franklin attends the Stand Up To Cancer benefit at The Shrine Auditorium on Sep.  7, 2012 in Los Angeles.

16) London 2012 Olympic Games
Missy Franklin and Elizabeth Beisel embrace after Franklin won the women's 200-meter backstroke final at the London 2012 Olympic Games at the Aquatics Centre on Aug. 3, 2012 in London.

17) 2012 U.S. Olympic Team Trials

Missy Franklin celebrates as she participates in the medal ceremony for the women's 200-meter backstroke at the 2012 U.S. Olympic Team Trials at CenturyLink Center on July 1, 2012 in Omaha, Neb.

18) 2012 U.S. Olympic Team Trials

Missy Franklin celebrates after she won the final of the women's 100-meter backstroke during the 2012 U.S. Olympic Team Trials at CenturyLink Center on June 27, 2012 in Omaha, Neb.

19) 2011 Swimming World Cup

Missy Franklin celebrates after winning the women's 200-meter backstroke final in a new world record time during the Swimming World Cup 2011 at the Eurosportpark on Oct. 22, 2011 in Berlin.

20) 2011 FINA World Championships

Melissa Franklin poses with her bronze medal after the women's 50-meter backstroke final during the 14th FINA World Championships at the Oriental Sports Center on July 28, 2011 in Shanghai.
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