Katy Perry: "I believe in justice but don't u think that an eye for an eye will make the whole world blind?"

Questlove: "I hope those rejoicing can hear O's words that to engage in anti Islam/Muslim rhetoric is missing the point."

Rihanna: "Rumpupupum Rumpupupum Rumpupupuuum."

Kings of Leon's Jared Followill: "The guy who shot Osama is about to get SO laid."

Adam Levine: "I dont know how I feel about 'celebrating' death. But I'm just glad this happened during a good man's presidency."

Duran Duran's Simon Le Bon: "The death of #obl does not inspire me to celebrate, rather to mourn the many who've died in this pointless conflict of ideals."

Chris Colfer ("Glee"): "I was wondering why my White House tour was cancelled today."

Keri Hilson: "I don't know about you, but I'm stayin prayed UP!! A lot has been happening on this dear earth at an unusually frequent pace."

Nick Lachey: "Ding dong, the witch is dead!! It only took nearly 10 years, but bin laden is dead. The world is a better place my friends."

Lil Twist: "Barrack Obama IS A EDUCATED GANGSTA!!! It's like he knows all the right words to say lol... Just seen the speech.... wow speechless lol"

Good Charlotte's Benji Madden: "How bad do you think President Obama wanted to say BoOoyah Son!!!??! at the end of his speech tonight? Probably really bad!"

Snoop Dogg: "RIP to everybody who was taken on 911. Let the troops back home n lower gas prices let's live happily ever after!!"

JordinSparks: "Ground Zero...I can feel the energy through my TV. It's electrifying."

Pete Wentz: "wow Obama 1, 2 punch: lion king video then Osama dead. seriously I wanna see who runs in 2012."

Paramore's Haley Williams: "#nowplaying 'Party In The USA' - Miley Cyrus"

Maxwell: "for the victims, the soldiers & the families who suffer loss or wait even now for the return of loved ones #THANKYOU"