Why stars like Chris Pratt and Dwayne Johnson are doing the 22 Push Up Challenge

A year after the The Ice Bucket Challenge had everyone from Oprah to Lady Gaga dousing themselves in cold water to raise awareness for ALS, a new challenge is sweeping Hollywood. Chris Pratt, Chris Evans and Dwayne Johnson are a few of the stars to have already completed the 22 Push Up Challenge – a viral campaign that hopes to bring attention to the 22 military veterans who commit suicide daily.

Much like the Ice Bucket Challenge, stars are putting the call out to their famous friends to take part. Actor John Krasinski challenged Chris Pratt and Chris Evans, who in turn have encouraged Jeremy Renner and Anthony Mackie to drop and give them 22.

Dwayne Johnson, with a little help from his pet pooch Hobbs, breezed through the challenge before calling out his Central Intelligence co-star Kevin Hart. Despite being on his honeymoon in St. Barts, the actor was quick to respond to the challenge.

Other early participants include Scott Eastwood, Ludacris and Anna Faris.

The campaign was started by an organization called 22KILL. It's goal is to reach 22 million push-ups "to honour those who serve and to raise awareness for veteran suicide prevention through education and empowerment."

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