“It’s dead, bitch!” snapped an unrepentant Cheyenne Cherry, sticking her tongue out after a plea bargain that will put her behind bars for a year in the May 6 killing of tiny Tiger Lily.

Cherry, 17, was confronted after her guilty plea in Bronx Supreme Court to charges of animal cruelty and attempted burglary in the May 6 killing at her former roommate’s apartment.

Tiger Lily was left to die inside the blistering oven after Cherry and a 14-year-old friend trashed the apartment of Valerie Hernandez, destroying furniture before stealing DVDs and food.

After her arrest, Cherry told police the cat killing was “just a joke.”

In court Wednesday, Cherry admitted to Judge Margaret Clancy that the younger girl put the cat in the oven - and “I didn’t let the cat out.”

The pair fled the apartment because they didn’t want to hear the dying cat’s cries or desperate scratching at the oven door, authorities said.

The second girl is facing trial in Family Court because of her age. Prosecutor Jennifer Troiano said Cherry was granted a plea deal because her cohort was “more culpable” for the crimes.

Under the agreement, Cherry pleaded guilty to two charges in a six-count indictment. She waived her right to appeal and agreed not to keep a pet for the next three years. Cherry, jailed on a probation violation, faces formal sentencing July 31.

As she exited the courtroom, she passed a row of animal rights activists outraged by her crime.