It's called "Christmas Alone" and you can find it
here Lyrics were found here at
http://www.animelyrics.com/anime/digitame/christmasalone.htm:
What's up with everyone and all this merry making
Gettin' all dressed up and glittery
That's stupid, I'd never do that
Parties and dates, the whole town's turned festive
Exchanging presents
It's ridiculous, I'm sick of it
Singin' all happily, they make me sick
Boring, boring, am I all alone again today? Boring, boring, stupid Christmas
There's nothing else to do, maybe I'll just evolve
Flapping my black wings
I let out a roar in the darkness
I'm different from you, heros are always lonely
Being alone suits me
Man, I'm hungry, oh, what's that? It looks good, man, I want some
It's started snowing on and off
It's freezing, I'd never do that
The kids are laughing and making a snowman
Eatin' a delicious looking meal
I'm not jealous at all
Why doesn't anyone invite me? Stupid brats
Shut up, shut up, quit frolicking around, shut up, shut up, stupid Christmas
I'm not lonely, maybe I'll just evolve
My strong fangs protruding
My red shadow shakes the earth
I don't want to play at being friends, my pride is always high
I like being alone
Flapping my black wings
I let out a roar in the darkness
I'm different from you, heros are always lonely
Being alone suits me
My strong fangs protruding
My red shadow shakes the earth
I don't want to play at being friends, my pride is always high
I like being alone
Ah man, this is boring, what's up with them?
Acting like they're all havin' fun, darn it, man it's cold
That looks good, wish I could have some, what's up with that? It's lonely here
Darn it, Christmas is dumb anyway, I'm fine on my own
Maybe I'll just evolve or somethin', man it's cold
dfsI found the lyrics funny and surprisingly sad and full of denial and loneliness and anger and it was just very, very Impmon.
I think this song occurs early in the series, before he actually evolves into Beezlemon, since the charcterization seems like Impmon at that earlier point. There are descriptions that could refer to Beezlemon, but I like to think it's just Impmon imagining what it'll be like to evolve, and it just proves accurate in the future. Or maybe somehow a Digimon can decide what'll he look like, etc. in his/her next evolutionary form based on his/her own imagination?
What did you guys think of the song?
terrierlee gave the link to the video
acmeeoy provided the link to the lyrics.