Britney Spears celebrated turning 30 by ice skating with boyfriend Jason Trawick and spending time with her boys, Jayden and Sean Preston, on Friday. The "Criminal" singer received a slew of birthday messages via Twitter from fans and famous friends. Such stars as Katy Perry, Nicki Minaj, Christina Aguilera, Miley Cyrus, Ryan Seacrest, Justin Bieber, Demi Lovato, Rihanna, Nicole Richie, Pauly D, Paris Hilton, and many, many others sent wishes, and Britney replied to every single one.
"Having an incredible birthday - thanks to my fans for all the amazing wishes & videos!" she tweeted. "Still trying to watch all of them. I love all of u!!!" But one birthday message from "Blow" singer Ke$ha, whom she collaborated with on the "Till the World Ends" remix along with Nicki Minaj, had Spears explaining one not-so kid-friendly word to her boys, who were watching the birthday video messages with her. "happpyyy birthdayyy Brit!!!" wrote Ke$ha , attaching the video message: "Britney, happy f--king birthday."
Spears wasn't quite prepared for the profane birthday wish, watching them with her boys, but she wasn't mad. "Thanks Miss Kesha. Just watched this in bed w my boys. Now I have to explain what F***ing means!! U rock Xxoo," she tweeted..