It was a big weekend for Vampire Diaries star Ian Somerhalder (Damon Salvatore). He turned the big 3-4 on December 8, and several members of the cast wished him happy birthday on Twitter. But since none of them actually tweeted #HappyBirthdayIanSomerhalder, that trending topic was all the fans. 

Need your daily Vampire Diaries fix? Like us on our Facebook page or follow us on Twitter!