Fans of Fox’s hit series “Glee” may look up and see Jennifer Lopez guest-starring as a lunch lady in an upcoming episode, according to show creator Ryan Murphy.

“I have a meeting with Jennifer Lopez in a couple weeks,” Murphy said backstage at the Golden Globes, where the show picked up an award. “She wants to come on. We want her to be a cafeteria lady.”

Julia Roberts and Julianne Moore have also expressed interest in being on the show, Murphy revealed.

As for future episodes beginning in April, “We are shooting right now a Madonna episode, a tribute to Madonna,” Murphy says. “She may or may not be in the show. We are doing a great number with Jane Lynch and Olivia Newton-John. They are going to do ‘Physical.’”

In other J.Lo news, the entertainer jumped into the ongoing saga at NBC between Jay Leno and Conan O’Brien as a sub for George Lopez’s TBS talk show.

“Welcome to ‘Lopez Tonight,’ where nobody gets fired, they just get replaced by a bigger star with the same last name…”

The singer didn’t pull any punches when discussing NBC’s embattled late-night comics. She joked that a Manhattan bartender has created a specialty cocktail in honor of O’Brien, who has voiced his displeasure with his network: “It’s called The Go-Back-To-Manhattan…it’s a Manhattan with sour grapes and a knife in it.”

The diva then wondered whether Leno was too old to attract hip, young viewers. “NBC is thinking about changing the NBC peacock to a cougar, since they are trying to attract young people to an old host,” she joked.

“Some women don’t like the expression ‘cougar’ but it’s better than what guys get, right? An older guy who dates a younger girl that’s called a ‘Letterman.'”