Yes he is single. In a recent interview, he made a joke about himself, saying he was "Single and ready to mingle". Of course, he's not looking for a relationship with anyone who doesn't actually know him in person.
YES YES YES YES YES YES....... YESSSSSSSSSSSSSSSSSS!!!!!!!!!!!!!!!! I WAS ON TWITTER THE OTHER dia AND HE TWEETED THAT "I AM SINGLE AND READY TO MINGLE. LOL" I WAS SOOOOOOO HAPPY!