Today in the Twitterverse, Justin Bieber wished his longtime friend Chaz Somers a big ol' "Happy birthday!" Perhaps Bieber could offer to take Somers out for an A-list night on the town for his birthday. Also, Ludacris quoted some words of wisdom courtesy of Lady Gaga, Mariah Carey's hubby Nick Cannon showed off his hilarious birthday outfit, and Adam Lambert assured everyone on Twitter that he is most definitely not a virgin. Oh, and Soulja Boy got a video game deal? Stay tuned for developments on that one! See what your favorite stars were chirping about today!