Story highlights Katy Perry said she's sleeping in

Backstreet Boy said Hollywood "needs to chill out"

(CNN) It's no surprise or secret that many in Hollywood are less than happy about Donald Trump becoming president of the United States.

On Friday, a few of them took to social media to express how they were feeling on the day that Trump is sworn in as the 45th president.

Singer Katy Perry tweeted "sleeping in" before she added, "Then, I'm marching. #WomensMarch" as she will participate in one of a series of planned protests to be held around the country Saturday.

sleeping in — KATY PERRY (@katyperry) January 20, 2017

"Wet Hot American Summer" star Michael Ian Black went a little darker, saying, "Definitely don't want to exaggerate but the world ends at noon."

Definitely don't want to exaggerate but the world ends at noon. — Michael Ian Black (@michaelianblack) January 20, 2017

Actor Colton Haynes tweeted that he was choosing to support "Love-a-thon," a social media movement on Inauguration Day to raise $500,000 in defense of civil liberties.

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