Will Ferrell was on Late Night with Conan O'Brien last night, promoting his new film 'The Campaign'. However, Ferrell seemed visibly upset at the start of the interview. When Conan asked him what was wrong, he let his emotions run wild and confessed that he was upset over Kristen Stewart cheating on Robert Pattinson.

First came the tears, then came the emotional yelling, before calling 'K-Stew' a "trampire".

"What they had was so special!", screamed Ferrell to O'Brian, "You don't even know! You would never know!"

The comedian's reaction to the breakup and cheating scandal of the famous couple was very similar to the die-hard Twilight fan's shocking YouTube video, released last week.

Watch Will Ferrell's emotional blow out below. Which reaction do you think was funnier?