Blake Lively Stays Put On 'Gossip Girl' And Jack Black Visits 'iCarly' In Today's Tweet Dreams

Jack Black"iCarly" has had some pretty famous faces drop by as of late, first with Jane Lynch and now, Jack Black (pictured)! Star Miranda Cosgrove, who starred with Jack in "School of Rock," tweeted, "filming with Jack Black! I can't wait! The scene is pretty crazy! U guys r gonna be surprised :)" While her co-star, Jennette McCurdy, had a hard time not being starstruck, telling followers, "Jack Black just high-fived me and I said 'I can barely breath right now. 'Hello Embarrassing, I see we're hangin out early this mornin."

As Jack Black is busy shaking things up on "iCarly" things are just as we left them over at "Gossip Girl", despite any rumors you may have heard. The show's writer/executive producer Josh Schwartz cleared up, well, gossip, that Blake Lively wanted to bow out in a very dramatic fashion. Josh posted, "Have to respond: no truth to rumors that BL requested to have Serena killed. All is well. GG S4 back on 9/13." XOXO, Josh!

Check out the rest of today's best celebrity tweets, including Britney Spears back in the studio and Kanye West's return to the VMA's! Follow us @hollywoodcrush to get even more celebrity and pop culture news around the clock!

@britneyspears What's uuupppp tweethearts? Spending the day in the studio recording.

-Britney Spears, Singer

@ashleymgreene Back to work on LOL today! It's good to be back. :)

-Ashley Greene, Actress ("Eclipse," "LOL: Laughing Out Loud")

@juliannehough Wardrobe fitting for footloose! Rocking a brunette do too :)

-Julianne Hough, Actress, Reality Star ("Footloose," "Dancing With the Stars")

@whitneyeveport How amazing are these flip flops?!

-Whitney Port, Reality Star ("The Hills," "The City")

@jamiebower Whitney Port is awesome. Fact. X

-Jamie Campbell Bower, Actor ("New Moon," "Harry Potter and the Deathly Hallows")

@sarahpaulson off to work with the amazing,talented, totally hilarious..and insanely handsome John Corbet..How lucky am I??

-Sarah Paulson, Actress ("Cupid")

@kanyewest Just met with MTV and it's about to go down! VMA's!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

-Kanye West, Rapper

@roxyolin Just watched The Runaways..I would die to be that rock & roll!..god why don't I have any musical talent whatsoever?!

-Roxy Olin, Reality Star ("The City")

@niavardalos On treadmill, eating a burger, watching Top Chef. It all works out.

-Nia Vardalos, Actress ("My Big Fat Greek Wedding")

@stephenathome If a Butterfinger doesn't list butter as an ingredient, then is it all just finger?

-Stephen Colbert, TV Host ("The Colbert Report")