Is Glee about to rip off Jonathan Coulton?

One of my FAVORITE muscians is Jonathan Coulton. He makes all sorts of original geeky music and he is featured regularly when we get together to play Rock Band.

The upcoming episode of Glee is supposed to feature Baby Got Back... by Sir Mix-a-lot? Yeah.. not so much.

It appears that the arrangement AND THE LYRICS were taken from Jonathan Coulton's cover of Baby Got Back. Jonathan Coulton, or JoCo to his fans, tweeted that they never contacted him about using it. They even use JoCo's lyrics:

I want 'em real thick and juicy
So find that juicy double
Johnny C's in trouble
Beggin' for a piece of that bubble

Not "Sir Mix-a-Lot's in trouble"... JOHNNY C... Jonathan Coulton.

I can ONLY HOPE that they will reference him in the credits. /fingers crossed

Here is JoCo's version for comparison: