There's a new online "challenge" that's starting to go viral, especially with celebrities. It's called "The Crotch Grab Challenge," in which guys post a pic of themselves on social media grabbing their junk to promote testicular cancer awareness, then challenge three guys to do the same.

William Shatner, and even 5 Seconds of Summer have grabbed the family jewels in the name of awareness.

testicular cancer typically develops in young men, although it can occur at any age. It is a highly treatable and usually curable type of cancer.

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