She has made a point of holding Bill Cosby accountable in the media after claims emerged the legendary comedian had drugged and raped women.

But Tina Fey had a jaw-dropping moment on Sunday when a poorly chosen joke was made about the 79-year-old at the 68th annual Emmy Awards.

The alleged rapist was announced as a presenter onstage before it was revealed it was all just a bit of bad taste in the humour department.

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Oh no! Tina Fey had a jaw-dropping moment on Sunday when a poorly chosen joke was made about Bill Cosby at the 68th annual Emmy Awards

In an attempt at comedy that fell flat, the ceremony announcer indicated that Cosby would be taking the stage.

After an awkward silence, host Jimmy Kimmel said it was a joke — the TV star embroiled in decades-old accusations of sexual assault wasn't invited.

However, Tina, 46, was clearly not happy about the jibe.

Forget about it: That same night Tina and her pal Amy Poehler took the stage

Longstanding: The comedienne has been jabbing at Cosby for years now

The TV writer and actress literally had a jaw dropping moment as she appeared to turn to long-time collaborator Amy Poehler, mouthing the words: 'This has to be a joke.'

At the Golden Globes last year Tina and Amy did not hold their punches when slamming Cosby during their hosting duties.

The duo made a joke about Disney musical Into The Woods.

Meanwhile, thirteen women who say Cosby drugged and sexually assaulted them over the years have agreed to testify against him in the only criminal case stemming from the allegations (seen her in May at a Pennsylvania courthouse)

Poehler said: 'Cinderella ran away from her prince, Rapunzel was thrown from a tower... and Sleeping Beauty just thought she was getting coffee with Bill Cosby.'

Both women then went on to put on silly voices mimicking the slow speaking style of the former The Cosby Show star while impersonating him as they each took turns saying: ‘I put the pills in the people. The people did not want the pills in them.'

Meanwhile, thirteen women who say Cosby drugged and sexually assaulted them over the years have agreed to testify against him in the only criminal case stemming from the allegations.

Prosecutors say the women's experiences show that Cosby is a serial offender and that the one case he's charged in — an alleged assault at his suburban Philadelphia home in 2004 — is part of a pattern of abuse dating to the 1960s.