I didn't do the whole song, but here's an okay Gangnam Style parody. I took elements from the movies, the comics, and the 60s TV show.
Disclaimer: I own neither Batman nor the song.
Batman Gotham Style
Gotham Style
Gliding from skyscrapers, kicking mobster faces
Brooding all day and night, my angst covers all bases
Don't judge me by the bat getup and the tights
I am still vengeance and the night
I'm the Batman, son
You don't know me as Bruce Wayne
I'm the Batman, son
I've got shark-repellant Bat spray
I'm the Batman, son
Won't let douche bags get away
I'm the Batman, son, hey, look, I'm Batman
It's the Joker
He shot my Batgirl
She's Oracle (Hey!), Oracle
It's the Scarecrow
City's in danger
To the Batpole (Hey!), to the Batpole (Hey!)
Now, come on, off to the Batmobile we go
...Batman Gotham Style
Heeeeeeeeeeeey, super villains!
Bat-Bat-Bat, Batman Gotham Style
Heeeeeeeeeeey, super villains!
Bat-Bat-Bat
Hey, hey, hey, hey, hey, hey!
Yes, it's too short. I know. On the upside, I was thinking about writing a Doctor Who one for a friend's birthday...
How bad was it?