Superman:

To the mutants in the movies
From the studios at FOX
I hope you understand

When I got your director
The only thing I meant to say
Is I'm a Singer fan

The red S on my chest somehow is like a Sentinel
That's demolishing Cerebro
And I just walked him right in the Danger Room

Just a planet's Last Son with a movie that's new
Except this time my shorts are painted blue
But from my point of view

I'm Earth's adopted son
Even though I'm Kryptonian
Trying to understand your continuity
The return of Superman
Caused X-Men: The Last Stand
But it ain't like you and me both came out reboot free
No DC Nation
Could cause this complication
We're still planning out the movies, hiring the directors, trying to set up Justice League
And caught between Christian Bale and George Clooney

Wolverine:

Dear Mr. Superman, you could have had it worse
But you don't what it's like in the Marvel universe
Just because my genes are mutant doesn't mean I'm in the Brotherhood
You should get to know me. Nah, on second thought, we're good
You think aliens are the only ones who have been misunderstood?
People always abandon mutants. Should've known that Singer would
You wanted a reboot? Fine! But did ya have to take the goods?
He just up and left us all alone with Rattner in the woods
You think cuz you've got Snyder and we got Singer back, we're good?
Well, if saying that will stop awful rap, I suppose I could
Go to church if what you want is forgiveness for your sins
But you still put me on the path to X-Men Origins

Superman: I'm Earth's adopted son
Wolverine: If you don't mention Giant-Slaying
Superman: Even though I'm Kryptonian
Wolverine: I won't mention Sucker-Punching
Superman: Trying to understand your continuity
Wolverine: *cough*New 52*cough*
Superman: The return of Superman
Wolverine: If you ignore Barakapool
Superman: Caused X-Men: The Last Stand
Wolverine: I'll ignore Stalkerman Returns
Superman: But it ain't like you and me can rewrite history
Wolverine: Actually, that's exactly what we're doing

(song ends)

Marvel/DC

The end