Celebrities rushed to social media Friday to celebrate the news that the Robert Mueller-led Special Counsel investigating President Donald Trump’s campaign announced a plea hearing for former National Security Adviser Lt. Gen. Mike Flynn, who has reportedly entered a guilty plea and is set to testify against Trump.

Outspoken Trump critic Rosie O’Donnell tweeted the hashtag “Best day ever” with a screenshot depicting breaking news alerts about Flynn.

Flynn has been charged with lying to the FBI, according to court documents released by the special counsel.

“On or about January 24, 2017, defendant MICHAEL T. FLYNN did willfully and knowingly make materially false, fictitious, and fraudulent statements and representations in a matter within the jurisdiction of the executive branch of the Government of the United States,” the documents said.

Star Wars star Mark Hamill tweeted: “If you guessed Michael (“Fear of Mueller is Rational”) Flynn as the next to go down- CONGRATULATIONS! (you’re even closer to a #TraitorBINGO!) Wonder how the “#POTUS” will strategize & pick his next move?”

Hamill’s tweet included the hashtag that spelled out the phrase “All I Want 4 Xmas Is 4 Santa 2 Lock Them Up LOCKTHEM UP.”

If you guessed Michael ("Fear of Mueller is Rational") Flynn as the next to go down- CONGRATULATIONS! (you're even closer to a #TraitorBINGO!) Wonder how the "#POTUS" will strategize & pick his next move? #AllIWant4XmasIs4Santa2LockThemUpLOCKTHEMUP #tRumPutin pic.twitter.com/mt7gdARdhF — Mark Hamill (@HamillHimself) December 1, 2017

Actor Jeff Daniels tweeted, “It’s beginning to look a lot like Christmas.”

“…it’s beginning to look a lot like Christmas…” #FlynnFriday — Jeff Daniels (@Jeff_Daniels) December 1, 2017

Flynn appeared Friday at the U.S. District Court for the District of Columbia where he entered his guilty plea, as part of a plea deal.

Below is a roundup of all the celebrity reaction, from gloating to the outright praise of Mueller.

'Those who live in glass houses shouldn't throw stones' – proverb I learned when I was 5yrs old https://t.co/o0wymNCYqE — Jessica Chastain (@jes_chastain) December 1, 2017

Not collusion treason –

If he -as candidate -asked for help from any foreign power to swing an election for ANY reason is a crime https://t.co/s8sDvq2TDz — John Cusack (@johncusack) December 1, 2017

If this is true it’s breath taking. https://t.co/koQ3zFNyCV — Adam McKay (@GhostPanther) December 1, 2017

United States Army Lieutenant General Michael Flynn has disgraced the Military and all who serve by lying to the FBI. He was more loyal to the Turkish Govt than to our own. The man who led the charge “LOCK HER UP” is about to be locked up. — Ron Perlman (@perlmutations) December 1, 2017

Trump has learned one thing from bannon. Every time there is bad news coming, get ahead of it by appealing to the bigotry of your supporters. It enrages the liberal media and energises the supporters. — Chelsea Handler (@chelseahandler) December 1, 2017

I’ll just leave this here https://t.co/FBl0RsIBuH — Chris Evans (@ChrisEvans) December 1, 2017

Flynn! What a fantastic birthday gift! — christine teigen (@chrissyteigen) December 1, 2017

Bye!!!! 👋 — Emmy Rossum (@emmyrossum) December 1, 2017

https://twitter.com/JoyVBehar/status/936646147585859584

"He is prepared to testify against President Trump, members of the Trump family and others in the White House." Let's do this. https://t.co/gmThu9HTUJ — Ava DuVernay (@ava) December 1, 2017

Flynn said he had a story to tell. Doesn't look like Donald Trump's Christmas will be all that merry. — Rob Reiner (@robreiner) December 1, 2017

Follow Jerome Hudson on Twitter: @jeromeehudson