'The Roommate' Opens In Theaters, Nikki Reed Fends Off Faux Twitter Accounts In Today's Tweet Dreams

With the college chiller "The Roommate" unpacking in theaters this weekend, it's pretty clear from the trailers that Leighton Meester does not make for an ideal dorm room companion...especially not for Minka Kelly. Still, the actresses, who seem to be getting along just fine off-screen (their "Roommate" co-star Aly Michalka confirmed from her Twitter, "We had a fun time making this one"), joined forces to promote their creepy new flick. When Minka posted, "I am beyond excited! #TheRoommate is in theaters TODAY!!! Hope you like it!! :)" Leighton quickly re-tweeeted and replied, ":)yay!" Uh-oh, Minka, look out!

Elsewhere, "Twilight" star Nikki Reed (pictured) was dealing with her own real-life impostor problem as someone has been pretending to be the actress on Twitter! Her "Breaking Dawn" co-star Tinsel Korey got on her page to address the issue, as she told followers, "Nikki Reed has been have problems with ppl posing as her on twitter. She let me know 2day that she DOES NOT have a twitter. FYI :)"

Check out the rest of Friday's celebrity best tweets from the stars and find out who is excited (and who has ideas) for Justin Bieber's next project! Follow us @hollywoodcrush to get even more celebrity and pop culture news around the clock!

@adamlevine Finding out your flight is cancelled when you are running late and just left your house? Priceless. Hello bed. I love you.

-Adam Levine, Singer (Maroon 5)

@adriangrenier On a flight to Dallas full of both green bay and steelers fans. I hope we can keep the peace, these are a vocal bunch.

-Adrian Grenier, Actor ("Entourage")

@selenagomez Argentina--I am getting ready for the show tonight. Can't wait to see you all, ready to have some fun?

-Selena Gomez, Singer, Actress ("Wizards of Waverly Place," "Ramona and Beezus")

@yelyahwilliams 1st band practice for the South American tour. Ahhhh yes!!

-Hayley Williams, Singer (Paramore)

@natashabdnfield Just heard that @Glee is doing an episode featuring #Destinyschild songs!great call. Those are my TUNES!!

-Natasha Bedingfield, Singer

@heidimontag Only 1 week until "Just Go With It" premieres! You should all go - it's hilarious - and my cameo's not bad either! =)

-Heidi Montag, Reality Star ("The Hills")

@jonmchu OMBYG = Oh My Biebs You Guys!!! = excit3D

-Jon Chu, Director ("Never Say Never," "Step Up 3D")

@emilyosment Justin Bieber should do a song w/ Michael Buble: Beebs and Bubes. You don't know till you try it!!!!!!!!!

-Emily Osment, Actress ("Hannah Montana")

@prattprattpratt The Iphone is amazing. Trippin me out. Remember when the most advanced technology we had was the Super Soaker? Like, "how does that work?"

-Chris Pratt, Actor ("Parks and Recreation")

@lakebell At the ATM, sometimes I choose to do it in "Espanol" just to challenge myself.

-Lake Bell, Actress ("No Strings Attached," "It's Complicated")