Jessica Alba Gets Ready For Halloween, While 'Silent Library' Gets Some 'Late Night' Visitors In Today's Tweet Dreams

Jessica AlbaWe're but two days away from the most fun holiday of the year...Halloween! The stars are just as excited about October 31st as we are, including "One Tree Hill" actor Austin Nichols who shared his scary good pumpkin carving skills with followers, "This is my pumpkin for Halloween. Very Proud." Meanwhile, Jessica Alba (pictured) took a cue from us here at HC and talked about the movies which gave her the biggest fright, "these r sum of my fav 80s horror flicks-Hellraiser,A Nightmare on Elm Street,The Lost Boys,It,Pet Sematary& Cujo 2 name a few #80flicksrock."

Of course, in addition to the treats on Halloween, there are always some tricksters, so it's fitting that Jimmy Fallon and his "Late Night" bandleader Questlove stopped by the dare-you-not-to-scream "Silent Library" set! The Roots drummer tweeted, "Why'd I let @jimmyfallon talk me into shooting silent library 6am?" while Jimmy posted, "Me & the Roots just shot an ep of MTV's Silent Library. Owen had to get licked."

Check out the rest of Friday's best tweets to find out what your favorite celebs are doing for the holiday weekend (and share some memories from Halloween's past)! Follow us @hollywoodcrush to get even more celebrity and pop culture news around the clock!

@jessetyler How many people pulled a Mitch today and were the only ones to go to work/school in full costume?

-Jesse Tyler Ferguson, Actor ("Modern Family")

@katewalsh It's friday! Woot woot!! Happy halloween! I am undressed up as 'addison' with taye who is dressed up as 'sam' bed.

-Kate Walsh, Actress ("Private Practice," "Grey's Anatomy")

@ryanseacrest Dressed in my halloween costume for radio today... guess who i am:

-Ryan Seacrest, TV and Radio Host ("American Idol")

@katyperry So word on the street is I'm a "costume" for this Halloween! The only thing I have to say to that is, please don't fail me... & send pix!

-Katy Perry, Singer

@chriscolfer This Halloween more men are going as Sue Sylvester than Iron Man!

-Chris Colfer, Actor ("Glee")

@kourtneykardash This is what your typical Kardashian/Jenner Halloween looks like...

-Kourtney Kardashian, Reality Star ("Keeping Up With the Kardashians," "Kourtney and Khloe Take Miami")

@kendrawilkinson love these old school halloween pics wasn't i a cutie?! lol

-Kendra Wilkinson, Reality Star ("Kendra," "Girls Next Door")

@mrbradgoreski Costume drama solved. Obsessed with my costumes for tonight and tomorrow. Ill twitpic tonight.

-Brad Goreski, Reality Star ("The Rachel Zoe Project")