Justin Bieber cheers on U.S. Olympic gymnastics team, swimmer Missy Franklin

Justin Bieber arrives at the 2012 Teen Choice Awards at Gibson Amphitheatre on July 22, 2012, in Universal City, Calif.

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(CBS News) Justin Bieber is showing his love for the Olympics, and it's not just Canadian teams he's behind. He's also rooting from Team USA.

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After the 18-year-old pop star congratulated Canadian gymnast Dominique Pegg, he tweeted about swimmer Missy Franklin, who scored a gold medal this week in the 100-meter backstroke. The 17-year-old Olympic champ is apparently a Bieber fan.

heard @franklinmissy is a fan of mine. now im a fan of hers too. CONGRATS on winning GOLD! #muchlove

-- Justin Bieber (@justinbieber) July 31, 2012

Franklin then retweeted Bieber's message, adding, "I just died! Thank you!"

Bieber also sent congratulations to the U.S. women's gymnastics team after they won Olympic gold on Tuesday.

CONGRATS to @mckaylamaroney @jordynmarie2013 @kyla_ross96 @aly_raisman @gabrielledoug on your GOLD MEDAL. #BeliebersWinGOLD #Proud ...

-- Justin Bieber (@justinbieber) August 1, 2012

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London Olympics: July 31, 2012

[Gasserpe]

So he was the only one cheering, and how many millions has he made from being there. Give him some more free money.

[mtownerman]

Looks just like a girl..man is he cute!!