Stars Commemorate Memorial Day 2017 -- Chris Pratt and John Krasinski Take the #MurphChallenge & More

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Many in Hollywood took to social media to honor our nation's fallen veterans.

The men and women who died serving the United States will always be remembered.

Many people, including those in Hollywood, took to social media on Memorial Day Monday to honor fallen servicemembers and pay their respects.

Chris Pratt and John Krasinki shared a Twitter video revealing that they'd taken part in the "#MurphChallenge," an annual Crossfit workout and fundraiser conducted in honor of Lt. Michael P. Murphy, a U.S. Navy Seal and Medal of Honor recipient who died during a tour in Afghanistan in 2005.

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Captain America star Chris Evans paid his respects on Twitter, writing, "Thank you to all the courageous men and women who have paid the ultimate sacrifice defending what we stand for#HonorAndRemember #MemorialDay."

Katy Perry, meanwhile, promoted the Wounded Warrior Project on Instagram, while sharing a lengthy commemoration of the national holiday on Instagram.

"Memorial Day is always a powerful reminder to put aside our small daily concerns and petty grievances, and allow ourselves to be humbled by the magnitude of the sacrifices made for us by our Veterans and their families," the "Swish Swish" singer wrote. "I am continually grateful to all our men and women in service now, and the job they do—day in and out, often far from home and loved ones—protecting our freedom. I bow my head and my heart, and I thank them."

Read Perry's full post below.

"Good Memorial Day!Thanks to our service people!" Mark Ruffalo wrote on Twitter.

Scott Eastwood posted on Instagram, writing, "Remember today that freedom is not free. We will never forget the men and women who fight and die for this country. To all the families that have lost loved ones. You're in my thoughts and prayers today."

Danny Trejo shared, simply, "Gone but never Forgotten #MemorialDay."

"I am free because of the brave," tweeted Jane the Virgin star Gina Rodriguez. "Today and everyday I thank you. #MemorialDay #FallenHeroes."

Read on for more Memorial Day 2017 commemorations.

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