Pics: Celebrities take on the #FafChallenge to promote cancer awareness

Springbok scrumhalf Faf de Klerk is inspiring men all over South Africa to put on their "speedos" to help raise awareness about testicular cancer. 

The 28-year-old and his undies continue to be the talk of the town after the Rugby World Cup.

Faf caused a stir online when he was seen greeting Prince Harry in his SA flag speedo after South Africa's winning performance against England.

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He has now decided to use all that hype to help men learn more about testicular cancer. 

"Don’t Faf this one up! Be ballsy enough to check your balls! Testicular cancer is curable if caught and treated in the very early stages! Check out www.fafchallenge.com for some important tip & tricks on how to up your ball skills!
I'm now challenging Siya, Jesse, and ALL OF YOU to get into your speedo & post a pic to help spread the word on this important cause!!" he wrote on Instagram.

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East Coast Breakfast host Darren Maule was one of the first celebrities to take on the challenge. 

While some Instagram users were screaming "noooooo.....(with the secret sound voice)", we were very impressed with his effort!

Go, Darren! 

ALSO READ: No Faf'ing way! Darren Maule bares it all in the #FafChallenge

Springbok captain Siya Kolisi and other male celebrities also accepted the challenge. 

Meanwhile, over on Twitter...

While the women of South Africa are busy drooling over all the #FafChallenge pictures, we hope it helps scores of men learn more about testicular cancer. 

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