Greyson Chance's 'Paparazzi' And The Cannes Film Festival In Today's Tweet Dreams

Chris ColferTres chic! Yesterday the Cannes Film Festival kicked off for the 63rd year in France, and will, as it always does, feature a bevvy of stars (including Nicky Hilton, who told followers, "Next stop--->Cannes!") and buzzed-about movies. This year's festival started with the worldwide premiere of "Robin Hood," which had a big turn-out, both for the screening and the after-party. One person who seemed to be enjoying herself was Eva Longoria who posted an enviable pic, "Me and gael Garcia Bernal last night at Robin Hood party. Great movie!"

Meanwhile, making waves on our side of the pond, is 12-year-old Greyson Chance (pictured), who has become a viral sensation by looking like Justin Bieber and, more impressively, singing like Lady Gaga. Not only did Ellen DeGeneres have him on her show today, posting, "This is 12 yr old Greyson Chance. Write that name down, memorize it – I have a feeling you’re gonna be hearing it A LOT.," he even got a surprise from Gaga herself, as Ellen tweeted, "Thank you @LadyGaga for calling during the show today – pretty sure you made Greyson’s year & I always love talking to ya!" (Check out YouTube to see Greyson's original video).

Check out the rest of today's best celebrity tweets, from wrapping things up at "Hannah Montana" to Amanda Bynes considering calling it quits on Twitter! Follow us @hollywoodcrush to get even more celebrity and pop culture news around the clock!

@chicky I think i'm gonna delete my Twitter soon. I probably won't but if I do it was nice knowing all of you and I hope you enjoyed reading my mind

-Amanda Bynes, Actress ("Hairspray," "What A Girl Wants")

@jimmyfallon Robert is bothered by the iPad.

-Jimmy Fallon, TV Host ("Late Night with Jimmy Fallon")

@thebrandicyrus second to last day of filming Hannah Montana...sooo saaad

-Brandi Cyrus, Singer

@mdoolittle Headed to rehearsal. Ummm...Peter Cetera, Lonestar and Blair Underwood are gonna be there. Heeeeee!

-Melinda Doolittle, Singer

@pink A little birdie told me that my album 'funhouse' has been on the charts for 80 weeks... That's a long time. Thanks america!!! :)

-Pink, Singer

@shannamoakler I have watched the "Hangover" 50000000 times now! lol

-Shanna Moakler, Reality Star ("Meet the Barkers")

@shannamoakler Birthday is coming....its going to be great turning 21. Finally.

-Apolo Ohno, Athlete, Reality Star ("Dancing With the Stars")

@chirscolfer I did some major sleep walking last night. Not a good thing to do at a hotel.

-Chris Colfer, Actor ("Glee")

@ddlovato Oh hello there 24th hour of no sleep... You snuck up on me. Is it bad that I haven't crashed yet? What's wrong with me?!!?

-Demi Lovato, Singer, Actress ("Camp Rock")

@oliviamunn And that my friends is called "pullin an all nighter". No I wasn't up partying. Even better... I cleaned and organized my house!!

-Olivia Munn, TV Host, Actress ("Iron Man 2")