User blog comment:Hetare!Hetalia/The character songs.../@comment-3162677-20101104025158

I think that song is just him singing about his carefree personality and what he enjoys to do.

Like these lines for instance:

(1)"I purposely won't read the atmosphere! 　Going my way (way way way…)

(2)That’s the style 　Overflowing vitality"

(1) We all know Alfred never knows whats going on even though he's right there, and he likes to do things his way.

(2) He's just saying that the way to go is to have huge amounts of energy. (Alfred is a very energetic man after all.)

From what I got from a few of th lines, that he want's everyone to get along. Also, I think he's telling us that he loves to dance and party. I could be wrong, but that's what I get from the song and reading the lyrics. (Well, he did throw a huge Christmas party for everyone, so it can be possible)

Man, I would try to interpret the whole song, but that takes a lot of time lol.