haha really? You know why that is... is the theatrical style of the song... also... your way of performing it... so like his character on the movie. A little goofy at times.. and also so expresive and energetic! YOU DO HAVE to watch it.. not only because it is a good movie.. (if you are into romantic comedies, that is) but also because you will be able to see it for yourself!

Jason Segel does that for his character on the movie, but he is also that type of musician anyways.. i have seen him do that other times. He is really good . And very unique... i love him as a comedic actor.. but i can tell by the very few performances i have seen by him, that he is a really good musician too!