Did Dwayne Johnson tweet first about Osama bin Laden death?

Stars have been weighing in and reacting to Osama bin Laden's death, particularly on Twitter.

Dwayne "The Rock" Johnson may have been the first celeb to have gotten wind of the news on Sunday night. At 10:24 p.m. ET, Johnson tweeted, "Just got word that will shock the world – Land of the free… home of the brave ... PROUD TO BE AN AMERICAN!" That's about 45 minutes before media outlets starting reporting it. And Keith Urbahn's tweet is said to have gone out at 10:24 p.m., too. (We hoped The Rock might hop on the phone to chat about it, but his rep told Lifeline Live: "No comment."

Neil Patrick Harris tweeted: "Everyone is sitting around my living room, mouths agape. Wow, what a night. Thank you, Mr. President, for such an eloquent speech."

Lady Gaga wrote: "What a historical moment in the fight against hatred."

At first, Katy Perry tweeted cheers to "America ... yeah!" but then added, "I believe in justice, but don't u think that an eye for an eye will make the world blind?"

Charlie Sheen tweeted: "Dead or Alive. WE PREFER DEAD! Well done SEAL team! AMERICA: #WINNING that's how we roll."

Wrote Lindsay Lohan: "Go USA!"

Jimmy Kimmel says a bin Laden a movie is in the works.