Sue Sylvester. I'm A Slave 4 U. It. Is. On.

Now that the long-rumored Britney Spears episode of Glee has been confirmed for next season, creator Ryan Murphy spilled a few details at Comic Con Sunday.

"We haven't started shooting yet," Murphy said. "We start shooting our new second season on Wednesday. All I can say is that we're doing six Britney songs."

Appropriately, Brittany (Heather Morris) will be the focus of the exciting episode. Hopefully it involves her losing her mind and walking out dressed like this ...

"I don't want to say what we're doing yet because it's not airing until September," she teased, "but we're paying tribute to her in a fun and unexpected way."

As for Matthew Morrison, who lambasted the idea of the Britney episode when it first leaked? He reportedly "refuses" to do Spears songs in the episode.

Will the pop singer herself make a cameo on the hit Fox show, which paid tribute to Lady Gaga and Madonna in wildly successful episodes last season?

Don't expect any big Glee spoilers ... yet.

"I can't say," Murphy said. "Isn't that terrible? That will launch 1,000 stories!"

What Britney song would you most like to hear on Glee?